refactor: refactor codebase to use plural form 'parameters'

- Rename `parameter` to `parameters` in CLI flags and environment variables
- Update function calls to use `parameters` instead of `parameter`
- Change struct field `Parameter` to `Parameters`
- Modify loop variable to iterate over `Parameters` instead of `Parameter`

Signed-off-by: appleboy <appleboy.tw@gmail.com>

ci: enhance CI/CD pipeline with GoReleaser integration

- Replace `go-version` with `go-version-file` and add `check-latest` in GitHub Actions workflow
- Add `.goreleaser.yaml` configuration file with build, archive, checksum, snapshot, release, and changelog settings

Signed-off-by: appleboy <appleboy.tw@gmail.com>

feat: add support for insecure TLS connections (#34)

- Add `crypto/tls` import in `jenkins.go`
- Add `Client` field to `Jenkins` struct
- Modify `NewJenkins` function to accept an `insecure` parameter and configure HTTP client accordingly
- Update `sendRequest` method to use the `Client` field from the `Jenkins` struct
- Update tests in `jenkins_test.go` to include the `insecure` parameter in `NewJenkins` calls
- Add `insecure` flag to CLI options in `main.go`
- Add `Insecure` field to `Plugin` struct
- Update `Plugin.Exec` method to pass `Insecure` field to `NewJenkins`

Signed-off-by: appleboy <appleboy.tw@gmail.com>

docs: refactor codebase and update documentation

- Update installation command from `go get` to `go install` in README.md

Signed-off-by: appleboy <appleboy.tw@gmail.com>

update docs

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

chore: mirror changes

remove branch

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

support group build (#19)

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

fix: show error if missing jobs.

docs: update