chore(deps): bump golang.org/x/crypto from 0.21.0 to 0.31.0 in /internal/kokoro/discogen (#2911)

Bumps [golang.org/x/crypto](https://togithub.com/golang/crypto) from 0.21.0 to 0.31.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://togithub.com/golang/crypto/commit/b4f1988a35dee11ec3e05d6bf3e90b695fbd8909"><code>b4f1988</code></a> ssh: make the public key cache a 1-entry FIFO cache</li>
<li><a href="https://togithub.com/golang/crypto/commit/7042ebcbe097f305ba3a93f9a22b4befa4b83d29"><code>7042ebc</code></a> openpgp/clearsign: just use rand.Reader in tests</li>
<li><a href="https://togithub.com/golang/crypto/commit/3e90321ac7bcee3d924ed63ed3ad97be2079cb56"><code>3e90321</code></a> go.mod: update golang.org/x dependencies</li>
<li><a href="https://togithub.com/golang/crypto/commit/8c4e668694ccbaa1be4785da7e7a40f2ef93152b"><code>8c4e668</code></a> x509roots/fallback: update bundle</li>
<li><a href="https://togithub.com/golang/crypto/commit/6018723c74059e3b91c84268b212c2f6cdab1f64"><code>6018723</code></a> go.mod: update golang.org/x dependencies</li>
<li><a href="https://togithub.com/golang/crypto/commit/71ed71b4faf97caafd1863fed003e9ac311f10ee"><code>71ed71b</code></a> README: don't recommend go get</li>
<li><a href="https://togithub.com/golang/crypto/commit/750a45fe5e473d5afa193e9088f3d135e64eca26"><code>750a45f</code></a> sha3: add MarshalBinary, AppendBinary, and UnmarshalBinary</li>
<li><a href="https://togithub.com/golang/crypto/commit/36b172546bd03a74c79e109ec84c599b672ea9e4"><code>36b1725</code></a> sha3: avoid trailing permutation</li>
<li><a href="https://togithub.com/golang/crypto/commit/80ea76eb17c0c52f5d5d04e833d6aeb6b062d81d"><code>80ea76e</code></a> sha3: fix padding for long cSHAKE parameters</li>
<li><a href="https://togithub.com/golang/crypto/commit/c17aa50fbd32393e5d52fa65ca51cbfff0a75aea"><code>c17aa50</code></a> sha3: avoid buffer copy</li>
<li>Additional commits viewable in <a href="https://togithub.com/golang/crypto/compare/v0.21.0...v0.31.0">compare view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=golang.org/x/crypto&package-manager=go_modules&previous-version=0.21.0&new-version=0.31.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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Author: dependabot[bot]

internal/kokoro/discogen/go.mod

@@ -25,10 +25,10 @@ require (
 	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
 	github.com/skeema/knownhosts v1.2.2 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
-	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/crypto v0.31.0 // indirect
 	golang.org/x/mod v0.12.0 // indirect
 	golang.org/x/net v0.22.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
 	golang.org/x/tools v0.13.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 )

internal/kokoro/discogen/go.sum

@@ -69,8 +69,8 @@ golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.3.1-0.20221117191849-2c476679df9a/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
@@ -103,22 +103,22 @@ golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
+golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/term v0.18.0 h1:FcHjZXDMxI8mM3nwhX9HlKop4C0YQvCVCdwYl2wOtE8=
+golang.org/x/term v0.27.0 h1:WP60Sv1nlK1T6SupCHbXzSaN0b9wUmsPoRS9b61A23Q=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=