ci: update checkout and cache actions in rust-build workflow (#105)

Author: jbern0rd

.github/workflows/rust-build.yml

@@ -32,26 +32,28 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ inputs.rust-version }}
           components: clippy, rustfmt
 
+      # https://github.com/actions/cache/blob/main/examples.md#rust---cargo
       - name: Cache dependencies
         if: ${{ inputs.enable-cache }}
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/bin/
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-release-${{ hashFiles('**/Cargo.lock') }}
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: |
-            ${{ runner.os }}-cargo-release-
+            ${{ runner.os }}-cargo-
 
       - name: Check formatting
         working-directory: ${{ inputs.working-directory }}