chore: split tests & checks into separate workflows

.github/workflows/tests.yaml

@@ -1,4 +1,4 @@
-name: Tests & Checks
+name: Tests
 
 on: ["push", "pull_request"]
 
@@ -18,7 +18,6 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ env.RUST_TOOLCHAIN }}
-          components: clippy, rustfmt
 
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2
@@ -45,14 +44,3 @@ jobs:
 
       - name: Run nextest
         run: cargo nextest run --workspace
-
-      - name: Run clippy
-        run: cargo clippy -- -D warnings
-
-      - name: Check formatting
-        run: cargo fmt -- --check
-
-      - uses: taiki-e/install-action@cargo-audit
-
-      - name: Run security audit
-        run: cargo audit