[ci] added missing space, hope it's working soon!

ci/test.py

@@ -54,7 +54,7 @@ if __name__ == "__main__":
                 "-m",
                 "pytest",
                 "--junitxml=report.xml",
-                "--cov" + str(Path("src").resolve()),
+                "--cov " + str(Path("src").resolve()),
                 "--cov-report xml",
             ]
         )