CI: remove unused worklow; use GITHUB_TOKEN where possible (#104657)

* remove unused worklow; use GITHUB_TOKEN where possible

* pin usages of checkout and setup-go

* Fix zizmor errors

* add zizmor.yml

* fix `changelog.yml`

* fix `core-plugins-build-and-release.yml`

* fix `release-comms.yml`

* update release-pr.yml and run-e2e-suite.yml

* Fix errors in files outside of .github/workflows

* Remove path filter on zizmor.yml

---------

Co-authored-by: Sven Grossmann <svennergr@gmail.com>
Co-authored-by: joshhunt <josh.hunt@grafana.com>

.github/workflows/pr-dependabot-update-go-workspace.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
     - name: Retrieve GitHub App secrets
       id: get-secrets
-      uses: grafana/shared-workflows/actions/get-vault-secrets@get-vault-secrets-v1.0.1
+      uses: grafana/shared-workflows/actions/get-vault-secrets@get-vault-secrets-v1.0.1 # zizmor: ignore[unpinned-uses]
       with:
         repo_secrets: |
           APP_ID=grafana-go-workspace-bot:app-id
@@ -37,14 +37,15 @@ jobs:
         private-key: ${{ env.PRIVATE_KEY }}
 
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       with:
         repository: ${{ github.event.pull_request.head.repo.full_name }}
         ref: ${{ github.event.pull_request.head.ref }}
         token: ${{ steps.generate_token.outputs.token }}
+        persist-credentials: false
 
     - name: Set go version
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@19bb51245e9c80abacb2e91cc42b33fa478b8639
       with:
         go-version-file: go.mod
 
@@ -65,4 +66,4 @@ jobs:
           echo "Committing and pushing workspace changes"
           git commit -a -m "update workspace"
           git push origin $BRANCH_NAME
-        fi
+        fi