Pinned dependencies on CodeQL workflow.

Author: Scott Straughan

.github/workflows/codeql.yml

@@ -34,11 +34,11 @@ jobs:
           build-mode: none
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@b611370bb5703a7efb587f9d136a52ea24c5c38c
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -54,6 +54,6 @@ jobs:
         exit 1
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@b611370bb5703a7efb587f9d136a52ea24c5c38c
       with:
         category: "/language:${{matrix.language}}"