fix(deps): replace deprecated actions to fix CI

- Bump actions/cache from v3.3.2 to v4 in cache-cargo-dependencies
- Replace deprecated actions-rs/toolchain@v1.0.7 with actions-rust-lang/setup-rust-toolchain@v1
- Use local ./cache-cargo-dependencies reference so PR branches pick up the fix

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: tomphp

cache-cargo-dependencies/action.yml

@@ -4,7 +4,7 @@ description: A simple wrapper around actions/cache configured with common Cargo
 runs:
   using: composite
   steps:
-    - uses: actions/cache@v3.3.2
+    - uses: actions/cache@v4
       name: Cache cargo dependencies
       with:
         key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

checkout-rust-project/action.yml

@@ -22,10 +22,9 @@ runs:
   using: composite
   steps:
     - uses: actions/checkout@v4
-    - uses: tomphp/github-actions/cache-cargo-dependencies@v0.1.0
-    - uses: actions-rs/toolchain@v1.0.7
+    - uses: ./cache-cargo-dependencies
+    - uses: actions-rust-lang/setup-rust-toolchain@v1
       with:
-        profile: ${{ inputs.rust-profile }}
         toolchain: ${{ inputs.rust-toolchain }}
-        default: ${{ inputs.rust-default }}
         components: ${{ inputs.rust-components }}
+        cache: false