CI CodeQL: Actionsのバージョン固定 (#2185)

Author: massongit

.github/workflows/codeql.yml

@@ -41,7 +41,7 @@ jobs:
         # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
     steps:
       - name: Checkout repository
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           persist-credentials: false
       # Initializes the CodeQL tools for scanning.