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/deploy-pr-preview.yml

@@ -12,7 +12,7 @@ on:
 jobs:
   deploy-pr-preview:
     if: "!github.event.pull_request.head.repo.fork"
-    uses: grafana/writers-toolkit/.github/workflows/deploy-preview.yml@main
+    uses: grafana/writers-toolkit/.github/workflows/deploy-preview.yml@main # zizmor: ignore[unpinned-uses]
     with:
       branch: ${{ github.head_ref }}
       event_number: ${{ github.event.number }}