Fix no-warnings CI workflow

Rename workflow from "Rust" to "No-Warnings Compilation" to avoid
collision with rust.yml, add --no-run to cargo test so it only checks
compilation, and remove the duplicate clippy step since --all-targets
already includes test targets.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: Sergio Arroutbi <sarroutb@redhat.com>

Author: sarroutbi

.github/workflows/compile-no-warnings.yml

@@ -1,5 +1,5 @@
 ---
-name: Rust
+name: No-Warnings Compilation
 
 "on":
   push:
@@ -21,8 +21,6 @@ jobs:
       - name: Check compilation (no warnings)
         run: RUSTFLAGS="-D warnings" cargo build
       - name: Check test compilation (no warnings)
-        run: RUSTFLAGS="-D warnings" cargo test
+        run: RUSTFLAGS="-D warnings" cargo test --no-run
       - name: Check clippy errors (no warnings included)
         run: cargo clippy --all-features --all-targets  -- -D clippy::all -D warnings
-      - name: Check clippy test errors (no warnings included)
-        run: cargo clippy --all-features --all-targets --tests -- -D clippy::all -D warnings