Pin GitHub Actions to specific commit SHAs

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily
+    rebase-strategy: disabled
+    open-pull-requests-limit: 10
+    cooldown:
+      default-days: 7
+      exclude:
+        - fac/*

.github/workflows/check-pinned-actions.yml

@@ -0,0 +1,11 @@
+name: Check actions have their versions pinned
+
+on:
+  push:
+    paths:
+      - '.github/workflows/*.yml'
+      - '.github/workflows/*.yaml'
+
+jobs:
+  pinact:
+    uses: fac/shared-workflows/.github/workflows/check_pinned_actions.yml@main

.github/workflows/linter.yml

@@ -11,13 +11,13 @@ jobs:
   linter:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 0 # Full history to get a proper list of changed files within `super-linter`
 
       - name: Lint Code Base
-        uses: github/super-linter@v4
+        uses: github/super-linter@985ef206aaca4d560cb9ee2af2b42ba44adc1d55 # v4.10.0
         env:
           VALIDATE_ALL_CODEBASE: false
           VALIDATE_BASH:  true

.github/workflows/shellcheck.yml

@@ -5,9 +5,9 @@ jobs:
     name: runner / shellcheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
       - name: shellcheck
-        uses: reviewdog/action-shellcheck@v1
+        uses: reviewdog/action-shellcheck@4c07458293ac342d477251099501a718ae5ef86e # v1.32.0
         with:
           fail_on_error: true
           reporter: github-pr-review

.pinact.yaml

@@ -0,0 +1,4 @@
+version: 3
+ignore_actions:
+  - name: fac/.*
+    ref: ^main$