Pin GitHub Actions to full-length commit SHAs (#73)

Author: danfiedler-msft

.github/dependabot.yml

@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      github-actions:
+        patterns: ["*"]
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7

.github/workflows/codeql.yml

@@ -55,11 +55,11 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@f3712979fa5f215279b101dd0a2e3bdfb4353324 # v3.37.7
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -87,6 +87,6 @@ jobs:
         exit 1
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@f3712979fa5f215279b101dd0a2e3bdfb4353324 # v3.37.7
       with:
         category: "/language:${{matrix.language}}"

.github/workflows/validate.yml

@@ -9,9 +9,9 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@3542bca2639a428e1796aaa6a2ffef0c0f575566 # v3.1.4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -28,7 +28,7 @@ jobs:
       run: |
         mypy featuremanagement
     - name: cspell-action
-      uses: streetsidesoftware/cspell-action@v6.8.0
+      uses: streetsidesoftware/cspell-action@0e63b882c2ef0e24d78b8b1fbb132b42c0a0d0cb # v6.8.0
     - name: Test with pytest
       run: |
         python -m pip install ".[test]"