feat(operator): several updates (#806)

- prepare to switch from `master` to `main`
- avoid to run workflow in case is not needed
- add a way to bump the lts via make
- use latest jenkins lts 2.387.1
- add the docker labels
- update base plugins
- fix #797 
- Add more tests with bats
- Update base plugin to latest version
- Temporary revert #807 
- Better nightly job

api/v1alpha2/jenkins_types.go

@@ -370,6 +370,11 @@ type JenkinsMaster struct {
 	// +optional
 	Plugins []Plugin `json:"plugins,omitempty"`
 
+	// Allow to override jenkins-plugin-cli default behavior
+	// while downloading the plugin and dependencies
+	// see: https://github.com/jenkinsci/plugin-installation-manager-tool#cli-options
+	LatestPlugins bool `json:"latestPlugins"`
+
 	// DisableCSRFProtection allows you to toggle CSRF Protection on Jenkins
 	DisableCSRFProtection bool `json:"disableCSRFProtection"`