installed pathlib2 on runner

Former-commit-id: 1a6015e5

CICD/ansiblelint/run_lint.py

@@ -13,10 +13,7 @@ def parse_argument():
     parser.add_argument('--logdir', type=Path, default=Path( __file__ + '/../logdir').resolve(), nargs='?', help='log directory default to ./ansiblelint/logdir')
 
     args = parser.parse_args()
-    try: 
-        args.logdir.mkdir()
-    except FileExistsError:
-        pass
+	args.logdir.mkdir(exist_ok=True)
     return args
 def parse_rule_output(line):
     # (filepath, line, rule, severity, rule_desc)