chore(updatecli): Update the gson-api plugin version (#447)

* Keep the gson-api plugin up-to-date with updatecli

Fixes #58

Add `updatecli` manifest to track and update `gson-api` plugin version.

* Create `updatecli/updatecli.d/gson-api.yaml` to track the latest `gson-api` plugin release from GitHub.
  * Define source to track the latest `gson-api` plugin release from `jenkinsci/gson-api-plugin` repository.
  * Define target to update `plugin-modernizer-core/src/main/resources/META-INF/rewrite/recipes.yml` file with the latest version.
  * Define actions to create a pull request with the changes.
* Modify `.github/workflows/updatecli.yaml` to include a step to run the new `updatecli` manifest file `updatecli/updatecli.d/gson-api.yaml`.

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/gounthar/plugin-modernizer-tool/issues/58?shareId=XXXX-XXXX-XXXX-XXXX).

* WiP

* fix(updatecli): New selector for the yaml path

* fix(updatecli): New selector for the yaml path

* fix(updatecli): $.

* fix(updatecli): Switched from yaml to file.

* fix(ga): No need to have anything specific to gson-api

updatecli/updatecli.d/gson-api.yaml

@@ -0,0 +1,46 @@
+name: Update gson-api plugin version
+
+scms:
+  default:
+    kind: github
+    spec:
+      user: "{{ .github.user }}"
+      email: "{{ .github.email }}"
+      owner: "{{ .github.owner }}"
+      repository: "{{ .github.repository }}"
+      token: "{{ requiredEnv .github.token }}"
+      username: "{{ .github.username }}"
+      branch: "{{ .github.branch }}"
+
+sources:
+  latestGsonApiVersion:
+    kind: githubrelease
+    spec:
+      owner: "jenkinsci"
+      repository: "gson-api-plugin"
+      token: "{{ requiredEnv .github.token }}"
+      username: "{{ .github.username }}"
+      versioning:
+        kind: semver
+        pattern: "latest"
+
+targets:
+  updateRecipesYaml:
+    name: "Update gson-api plugin version in recipes.yml"
+    kind: file
+    spec:
+      file: ./plugin-modernizer-core/src/main/resources/META-INF/rewrite/recipes.yml
+      matchPattern: "(pluginArtifactId: gson-api\\n)(.*\\n)(.*pluginVersion:) .*"
+      replacePattern: '$1$2$3 {{ source "latestGsonApiVersion" }}'
+    sourceid: latestGsonApiVersion
+    scmid: default
+
+actions:
+  createPullRequest:
+    kind: github/pullrequest
+    scmid: default
+    title: 'Update gson-api plugin version to {{ source "latestGsonApiVersion" }}'
+    spec:
+      labels:
+        - dependencies
+        - updatecli