More tweaks to release-plz workflow.

Author: tarka

.github/workflows/release-plz.yml

@@ -45,11 +45,18 @@ jobs:
       group: release-plz-${{ github.ref }}
       cancel-in-progress: false
     steps:
-      - *checkout
-      - *install-rust
+      - &checkout
+        name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+          persist-credentials: true
+      - &install-rust
+        name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
       - name: Run release-plz
         uses: release-plz/action@v0.5
-        with:
-          command: release-pr
         env:
           GITHUB_TOKEN: ${{ secrets.RELEASE_PLZ_TOKEN }}
+        with:
+          command: release-pr