ci: Enable namespace caching for clippy on Mac (#47819)

Release Notes:

- N/A

.github/workflows/release.yml

@@ -140,6 +140,11 @@ jobs:
         mkdir -p ./../.cargo
         cp ./.cargo/ci-config.toml ./../.cargo/config.toml
       shell: bash -euxo pipefail {0}
+    - name: steps::cache_rust_dependencies_namespace
+      uses: namespacelabs/nscloud-cache-action@v1
+      with:
+        cache: rust
+        path: ~/.rustup
     - name: steps::clippy
       run: ./script/clippy
       shell: bash -euxo pipefail {0}

.github/workflows/run_tests.yml

@@ -159,6 +159,11 @@ jobs:
         mkdir -p ./../.cargo
         cp ./.cargo/ci-config.toml ./../.cargo/config.toml
       shell: bash -euxo pipefail {0}
+    - name: steps::cache_rust_dependencies_namespace
+      uses: namespacelabs/nscloud-cache-action@v1
+      with:
+        cache: rust
+        path: ~/.rustup
     - name: steps::clippy
       run: ./script/clippy
       shell: bash -euxo pipefail {0}