chore: use dtolnay/rust-toolchain

.github/workflows/ikigai-graphql-server-check.yml

@@ -14,18 +14,12 @@ defaults:
 
 jobs:
   check_clippy:
-    name: cargo test
+    name: cargo clippy
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: 1.71.1
-          override: true
           components: rustfmt, clippy
-
-      - name: Run cargo check
-        uses: actions-rs/cargo@v1
-        with:
-          command: check
+      - run: cargo clippy --all-features -- -D warnings