Use llvm-cov without version specification

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Author: claude

.gitlab-ci.yml

@@ -191,14 +191,14 @@ coverage:generate:
     - build:default
   before_script:
     - apt-get update -qq
-    - apt-get install -y -qq build-essential clang llvm llvm-tools gcov
+    - apt-get install -y -qq build-essential clang llvm llvm-tools
   script:
     - make clean
     - CFLAGS="-march=x86-64" make test-coverage
-    - make coverage
+    - llvm-cov gcov -r build/*-coverage.gcno
     - mkdir -p coverage_report
     - find build -name "*.gcov" -exec cp {} coverage_report/ \;
-    - echo "Coverage report generated"
+    - ls -lah coverage_report/
   artifacts:
     paths:
       - coverage_report/