fix: address security vulnerabilities in CodeQL workflow

- Add workflow-level permissions to fix unspecified permissions issue
- Pin GitHub Actions to specific SHA versions for security:
  - actions/checkout@v4.2.2 (SHA: 11bd71901bbe5b1630ceea73d27597364c9af683)
  - github/codeql-action@v3.29.2 (SHA: 181d5eefc20863364f96762470ba6f862bdef56b)

Fixes the 3 high-severity code vulnerabilities identified by static analysis.

Author: scottgerring

.github/workflows/codeql.yml

@@ -11,6 +11,12 @@
 #
 name: "CodeQL Advanced"
 
+permissions:
+  contents: read
+  security-events: write
+  actions: read
+  packages: read
+
 on:
   push:
     branches: [ "main" ]
@@ -63,7 +69,7 @@ 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@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
     # Add any setup steps before running the `github/codeql-action/init` action.
     # This includes steps like installing compilers or runtimes (`actions/setup-node`
@@ -73,7 +79,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@181d5eefc20863364f96762470ba6f862bdef56b # v3.29.2
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -101,6 +107,6 @@ jobs:
         exit 1
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@181d5eefc20863364f96762470ba6f862bdef56b # v3.29.2
       with:
         category: "/language:${{matrix.language}}"