fix: add git safe.directory for containerized CI with persistent cache

When using persistent cargo cache mounted from host directory, the container
user differs from the directory owner, causing git "dubious ownership" error.
This fix adds `git config --global --add safe.directory '*'` before cargo
commands in containerized jobs.

.github/workflows/tests-linux-stable.yml

@@ -46,7 +46,9 @@ jobs:
         run: rustup target add wasm32v1-none || true
       - name: script
         id: required
-        run: WASM_BUILD_NO_COLOR=1 cargo test -p pezstaging-node-cli --release --locked -- --ignored
+        run: |
+          git config --global --add safe.directory '*'
+          WASM_BUILD_NO_COLOR=1 cargo test -p pezstaging-node-cli --release --locked -- --ignored
 
   # https://github.com/pezkuwichain/ci_cd/issues/864
   test-linux-stable-runtime-benchmarks:
@@ -72,7 +74,9 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: script
         id: required
-        run: cargo nextest run --workspace --features runtime-benchmarks benchmark --locked --cargo-profile testnet --cargo-quiet
+        run: |
+          git config --global --add safe.directory '*'
+          cargo nextest run --workspace --features runtime-benchmarks benchmark --locked --cargo-profile testnet --cargo-quiet
 
   test-linux-stable:
     needs: [preflight]
@@ -154,6 +158,7 @@ jobs:
       - name: script
         id: required
         run: |
+          git config --global --add safe.directory '*'
           cargo nextest run --workspace \
                    --locked \
                    --release \