ci: bump cache version to v1 for fresh start

Author: xdustinface

.github/workflows/build-and-test.yml

@@ -24,9 +24,11 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
         with:
+          prefix-key: "v1-rust"
           shared-key: "${{ inputs.os }}"
           cache-on-failure: true
-      - name: Build workspace (including test binaries)
+      - name: Build workspace
+        # Use cargo test --no-run here to build all test binaries.
         run: cargo test --workspace --all-features --no-run ${{ inputs.exclude-crates && format('--exclude {0}', inputs.exclude-crates) || '' }}
 
   test:
@@ -46,6 +48,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
         with:
+          prefix-key: "v1-rust"
           shared-key: "${{ inputs.os }}"
           save-if: false
       - uses: actions/setup-python@v5