GitHub CI: Update Swatinem/rust-cache config

Author: uklotzde

.github/workflows/benchmark.yaml

@@ -37,7 +37,10 @@ jobs:
 
       # restore cargo cache from previous runs
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.0.0
+        uses: Swatinem/rust-cache@v2
+        with:
+          # The cache should not be shared between different workflows and jobs.
+          shared-key: ${{ github.workflow }}-${{ github.job }}
 
       ## Benchmarks
       - name: install valgrind for benchmarks

.github/workflows/build.yaml

@@ -39,8 +39,8 @@ jobs:
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2
         with:
-          # Distinguished by the action name to avoid sharing!
-          shared-key: "rust"
+          # The cache should not be shared between different workflows and jobs.
+          shared-key: ${{ github.workflow }}-${{ github.job }}
 
       # check it builds
       - name: Build

.github/workflows/msrv.yaml

@@ -36,8 +36,8 @@ jobs:
       - name: Cache Rust toolchain and build artifacts
         uses: Swatinem/rust-cache@v2
         with:
-          # Distinguished by the action name to avoid sharing!
-          shared-key: "msrv"
+          # The cache should not be shared between different workflows and jobs.
+          shared-key: ${{ github.workflow }}-${{ github.job }}
 
       - name: Check workspace
         run: cargo check --locked --workspace --verbose --all-targets --all-features

.github/workflows/pre-commit.yaml

@@ -44,8 +44,8 @@ jobs:
       - name: Cache Rust toolchain and build artifacts
         uses: Swatinem/rust-cache@v2
         with:
-          # Distinguished by the action name to avoid sharing across different actions!
-          shared-key: "pre-commit"
+          # The cache should not be shared between different workflows and jobs.
+          shared-key: ${{ github.workflow }}-${{ github.job }}
 
       - name: Detect code style issues (push)
         uses: pre-commit/action@v3.0.0