Merge torrust#926: ci: pre-build coverage test

f0de8dd ci: pre-build coverage test (Cameron Garnham)

Pull request description:

  ... maybe it will work now...

ACKs for top commit:
  da2ce7:
    ACK f0de8dd

Tree-SHA512: b532a27439ad438a1f249a9888314d41d9646f890185dab092b635c90b21f3dd29d37b9f2cb59a78fabd78c2b0483974b7a6c80948fba81cfbcfab5ba8f742bf

.github/workflows/coverage.yaml

@@ -59,6 +59,10 @@ jobs:
         name: Clean Build Directory
         run: cargo clean
 
+      - id: build
+        name: Pre-build Main Project
+        run: cargo build
+
       - id: test
         name: Run Unit Tests
         run: cargo test --tests --workspace --all-targets --all-features