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/alerting-update-module.yml

@@ -18,7 +18,8 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # 4.2.2
-
+        with:
+          persist-credentials: false
       - name: Check if update branch exists
         run: |
           if git ls-remote --heads origin update-alerting-module | grep -q 'update-alerting-module'; then
@@ -96,7 +97,7 @@ jobs:
           make update-workspace
 
       - id: get-secrets
-        uses: grafana/shared-workflows/actions/get-vault-secrets@28361cdb22223e5f1e34358c86c20908e7248760 # 1.1.0
+        uses: grafana/shared-workflows/actions/get-vault-secrets@main # zizmor: ignore[unpinned-uses]
         with:
           repo_secrets: |
             GITHUB_APP_ID=alerting-team:app-id