Update GitHub Actions workflows

- CodeQL: scan Actions workflows too, switch to build-mode none matrix, drop autobuild
- container: attach build provenance and SBOM to the image
- add timeout-minutes to all jobs

.github/workflows/codeql-analysis.yml

@@ -15,13 +15,23 @@ on:
 
 jobs:
   analyze:
-    name: Analyze
+    name: Analyze (${{ matrix.language }})
     runs-on: ubuntu-latest
+    timeout-minutes: 30
     permissions:
       actions: read
       contents: read
       security-events: write
 
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - language: actions
+            build-mode: none
+          - language: python
+            build-mode: none
+
     steps:
       - name: Clone repository
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
@@ -31,13 +41,11 @@ jobs:
       - name: Initialize CodeQL
         uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
         with:
-          languages: "python"
+          languages: ${{ matrix.language }}
+          build-mode: ${{ matrix.build-mode }}
           queries: +security-and-quality
 
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
-
       - name: Perform CodeQL Analysis
         uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v4.36.2
         with:
-          category: "/language:python"
+          category: "/language:${{ matrix.language }}"