ci: Add check run with all feature enabled

Add another CI job which runs `cargo check` with all profirust crate
features enabled.

Additionally, forbid all warnings during this check run so CI notifies
us of code yielding warnings early.

.github/workflows/ci.yml

@@ -16,6 +16,15 @@ jobs:
       - uses: actions-rust-lang/setup-rust-toolchain@v1
       - run: cargo test -p gsd-parser
 
+  check-profirust:
+    name: Check profirust sources
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+      - run: sudo apt-get install -y libudev-dev
+      - run: RUSTFLAGS=-Dwarnings cargo check -p profirust --all-features --examples
+
   test-profirust:
     name: Run profirust testsuite
     runs-on: ubuntu-latest