ci: use zizmor and remediate findings (#63)

Author: inahga

.github/workflows/integration.yml

@@ -17,12 +17,12 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         persist-credentials: false
 
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
       with:
         go-version-file: 'go.mod'
 

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         persist-credentials: false
 

.github/workflows/test.yml

@@ -17,12 +17,12 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         persist-credentials: false
 
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
       with:
         go-version-file: 'go.mod'
 
@@ -33,7 +33,7 @@ jobs:
       run: go test -v ./...
 
     - name: Lint
-      uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9
+      uses: golangci/golangci-lint-action@1e7e51e771db61008b38414a730f564565cf7c20 # v9.2.0
       with:
         version: v2.4.0
 

.github/workflows/zizmor.yml

@@ -0,0 +1,36 @@
+name:  Lint GitHub Actions
+
+on:
+  push:
+    branches:
+      - main
+      - release-branch-*
+  pull_request:
+    branches:
+      - '**'
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  zizmor:
+    runs-on: ubuntu-24.04
+
+    env:
+      ZIZMOR_IMAGE: ghcr.io/zizmorcore/zizmor:1.25.2@sha256:14ea7f5cc7c67933394a35b5a38a277397818d232602635edb2010b313afb110
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          docker run \
+            --volume "${GITHUB_WORKSPACE}:/src:ro" \
+            --workdir "/src" \
+            --env "GH_TOKEN" \
+            "$ZIZMOR_IMAGE" -- /src