ci: Add cargo fuzz check to GitHub actions

See: #6085

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>

.github/workflows/fuzz-build.yaml

@@ -12,6 +12,8 @@ jobs:
           - nightly
         target:
           - x86_64-unknown-linux-gnu
+    env:
+      RUSTFLAGS: -D warnings
     steps:
       - name: Code checkout
         uses: actions/checkout@v4
@@ -22,8 +24,8 @@ jobs:
             target: ${{ matrix.target }}
             override: true
       - name: Install Cargo fuzz
-        # Temporary fix for cargo-fuzz on latest nightly: https://github.com/rust-fuzz/cargo-fuzz/issues/276
-        #run: cargo install cargo-fuzz
-        run: cargo install --git https://github.com/rust-fuzz/cargo-fuzz --rev b4df3e58f767b5cad8d1aa6753961003f56f3609
-      - name: Cargo Fuzz Build
+        run: cargo install cargo-fuzz
+      - name: Fuzz Build
         run: cargo fuzz build
+      - name: Fuzz Check
+        run: cargo fuzz check