Bump version number

vk_url_scraper/scraper.py

@@ -3,7 +3,7 @@ import re
 import shutil
 from collections import defaultdict
 from datetime import datetime
-from typing import Optional, List
+from typing import List, Optional
 from urllib.parse import urlparse
 
 import requests

vk_url_scraper/version.py

@@ -2,7 +2,7 @@ _MAJOR = "0"
 _MINOR = "3"
 # On main and in a nightly release the patch should be one ahead of the last
 # released build.
-_PATCH = "15"
+_PATCH = "21"
 # This is mainly for nightly builds which have the suffix ".dev$DATE". See
 # https://semver.org/#is-v123-a-semantic-version for the semantics.
 _SUFFIX = ""