Unpin codeql actions (#5787)

## Which problem is this PR solving?
- Renovate bot does not upgrade these because the main branch there is
on v2
- Code scanning does not need to be locked down as strictly as
reproducible builds

## Description of the changes
- Use v3 instead of exact commit or exact semver
- The logs still show the exact version used, e.g.
`CODEQL_ACTION_VERSION: 3.25.15`

## How was this change tested?
- CI

Signed-off-by: Yuri Shkuro <github@ysh.us>

.github/workflows/codeql.yml

@@ -44,7 +44,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@b611370bb5703a7efb587f9d136a52ea24c5c38c # v3.25.11
+      uses: github/codeql-action/init@v3
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -53,7 +53,7 @@ jobs:
         # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
     - name: Autobuild
-      uses: github/codeql-action/autobuild@b611370bb5703a7efb587f9d136a52ea24c5c38c # v3.25.11
+      uses: github/codeql-action/autobuild@v3
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@b611370bb5703a7efb587f9d136a52ea24c5c38c # v3.25.11
+      uses: github/codeql-action/analyze@v3