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

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

.github/workflows/documentation-ci.yml

@@ -10,10 +10,10 @@ jobs:
     container:
       image: grafana/vale:latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:
           persist-credentials: false
-      - uses: grafana/writers-toolkit/vale-action@vale-action/v1
+      - uses: grafana/writers-toolkit/vale-action@vale-action/v1 # zizmor: ignore[unpinned-uses]
         with:
           filter: '.Name in ["Grafana.GrafanaCom", "Grafana.WordList", "Grafana.Spelling", "Grafana.ProductPossessives"]'
           token: ${{ secrets.GITHUB_TOKEN }}