[ci] Increase timeout for check-runtime-migration workflow (#4674)

`[check-runtime-migration` now takes more than 30 minutes. Quick fix
with increased timeout.

.github/workflows/check-runtime-migration.yml

@@ -34,7 +34,7 @@ jobs:
   # rococo and westend are disabled for now (no access to parity-chains.parity.io)
   check-runtime-migration:
     runs-on: arc-runners-polkadot-sdk-beefy
-    timeout-minutes: 30
+    timeout-minutes: 40
     needs: [set-image]
     container:
       image: ${{ needs.set-image.outputs.IMAGE }}

.github/workflows/checks-quick.yml

@@ -119,19 +119,19 @@ jobs:
           echo "Checking markdown formatting. More info: docs/contributor/markdown_linting.md"
           markdownlint --config "$CONFIG" --ignore target .
   check-umbrella:
-    runs-on: arc-runners-polkadot-sdk
+    runs-on: ubuntu-latest
     timeout-minutes: 10
     needs: [set-image]
     container:
       image: ${{ needs.set-image.outputs.IMAGE }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.0 (22. Sep 2023)
       - name: install python deps
-        run: |
-          sudo apt-get update && sudo apt-get install -y python3-pip python3
-          pip3 install "cargo-workspace>=1.2.4" toml
+        run: pip3 install "cargo-workspace>=1.2.4" toml
       - name: check umbrella correctness
         run: |
+          # Fixes "detected dubious ownership" error in the ci
+          git config --global --add safe.directory '*'
           python3 scripts/generate-umbrella.py --sdk . --version 0.1.0
           cargo +nightly fmt --all