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-test-integration.yml

@@ -17,9 +17,11 @@ jobs:
     runs-on: ubuntu-latest-8-cores
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        with:
+          persist-credentials: false
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@111f3307d8850f501ac008e886eec1fd1932a34
         with:
           go-version-file: go.mod
           cache: true
@@ -45,9 +47,9 @@ jobs:
           - 3306:3306
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@111f3307d8850f501ac008e886eec1fd1932a34
         with:
           go-version-file: go.mod
           cache: true
@@ -70,9 +72,9 @@ jobs:
           - 5432:5432
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@111f3307d8850f501ac008e886eec1fd1932a34
         with:
           go-version-file: go.mod
           cache: true