CI: add back missing command for codecov (#5222)

Author: caic99

.github/workflows/coverage.yml

@@ -15,10 +15,10 @@ jobs:
         uses: actions/checkout@v4
       - name: Install Requirements for Coverage Testing
         run: |
-          apt update && apt install -y lcov
+          apt update && apt install -y lcov gpg
       - name: Building
         run: |
-          cmake -B build -DBUILD_TESTING=ON -DENABLE_DEEPKS=ON -DENABLE_LIBXC=ON -DENABLE_LIBRI=ON -DENABLE_PAW=ON -DENABLE_GOOGLEBENCH=ON -DENABLE_RAPIDJSON=ON
+          cmake -B build -DENABLE_COVERAGE=ON -DBUILD_TESTING=ON -DENABLE_DEEPKS=ON -DENABLE_LIBXC=ON -DENABLE_LIBRI=ON -DENABLE_PAW=ON -DENABLE_GOOGLEBENCH=ON -DENABLE_RAPIDJSON=ON
           cmake --build build -j`nproc`
           cmake --install build
       - name: Testing