ci: fix llvm-cov -ignore-filename-regex pattern

modules/test/CMakeLists.txt

@@ -1,2 +1,2 @@
 add_library_module(test test.cpp entrypoint.cpp)
-add_test_module(test test.tests.cpp)
+add_test_module(test test.test.cpp)

modules/time/CMakeLists.txt

@@ -1,3 +1,3 @@
 add_library_module(time timer.cpp)
-add_test_module(time timer.tests.cpp)
+add_test_module(time timer.test.cpp)
 

tools/ci/amd64/clang/coverage.sh

@@ -29,7 +29,8 @@ LLVM_COV_SHOW=$(llvm-cov show \
         -instr-profile='./build/coverage/merged.profdata' \
         $(find ./build -type f -name '*_tests' -executable -exec printf -- '-object %s ' {} \;) \
         $(find ./build -type f -name '*\.a' -exec printf -- '-object %s ' {} \;) \
-        -ignore-filename-regex="*.test.cpp|./external*"
+        -ignore-filename-regex='\.test\.cpp$' \
+        -ignore-filename-regex='./external/'
 )
 
 echo "${LLVM_COV_SHOW}" > './build/coverage/coverage.txt'