Add action to populate and save rust dependencies

cache-rust-dependencies/action.yaml

@@ -0,0 +1,32 @@
+name: Cache Rust Dependencies
+description: Fetch and Cache rust dependencies
+
+runs:
+  using: "composite"
+  steps:
+    -
+      name: Fetch rust cache
+      id: cache
+      uses: https://github.com/actions/cache/restore@v4
+      with:
+        path: |
+          ~/.cargo/registry/index
+          ~/.cargo/registry/cache
+          ~/.cargo/git/db
+          target/
+        key: cargo-${{ hashFiles('Cargo.toml') }}-${{ hashFiles('Cargo.lock') }}
+    -
+      name: Fetch dependencies
+      if: steps.cache.outputs.cache-hit != 'true'
+      run: cargo fetch
+    -
+      name: Populate rust cache
+      if: steps.cache.outputs.cache-hit != 'true'
+      uses: https://github.com/actions/cache/save@v4
+      with:
+        path: |
+          ~/.cargo/registry/index
+          ~/.cargo/registry/cache
+          ~/.cargo/git/db
+          target/
+        key: ${{ steps.cache.outputs.cache-primary-key }}