Generate coverage-python.lcov directly with pytest

Author: antonwolfy

scripts/gen_coverage.py

@@ -96,8 +96,7 @@ def run(
             "pyproject.toml",
             "--cov",
             "dpnp",
-            "--cov-report",
-            "term-missing",
+            "--cov-report=lcov:coverage-python.lcov",
             "--pyargs",
             "dpnp",
             *pytest_opts.split(),
@@ -136,7 +135,7 @@ def find_objects():
     )
 
     # export lcov
-    with open("dpnp_pytest.lcov", "w") as fh:
+    with open("coverage-cpp.lcov", "w") as fh:
         subprocess.check_call(
             [
                 os.path.join(bin_llvm, "llvm-cov"),