Bump dnspython from 1.16.0 to 2.1.0

Bumps [dnspython](https://github.com/rthalley/dnspython) from 1.16.0 to 2.1.0.
- [Release notes](https://github.com/rthalley/dnspython/releases)
- [Changelog](https://github.com/rthalley/dnspython/blob/master/doc/whatsnew.rst)
- [Commits](https://github.com/rthalley/dnspython/compare/v1.16.0...v2.1.0)

---
updated-dependencies:
- dependency-name: dnspython
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,34 +1,34 @@
-beautifulsoup4==4.9.3
-cachetools==4.2.2
-certifi==2020.12.5
+beautifulsoup4==4.10.0
+cachetools==4.2.4
+certifi==2021.10.8
 cffi==1.14.5
 chardet==3.0.4
 click==7.1.2
 cssselect==1.1.0
-dnspython==1.16.0
+dnspython==2.1.0
 docker==4.4.1
 feedparser==6.0.8
-gitdb==4.0.7
-GitPython==3.1.14
-google-api-core==1.26.3
-google-auth==1.30.0
-google-cloud-core==1.6.0
-google-cloud-datastore==1.15.3
-google-cloud-storage==1.38.0
+gitdb==4.0.9
+GitPython==3.1.24
+google-api-core==2.2.2
+google-auth==2.3.3
+google-cloud-core==2.2.1
+google-cloud-datastore==2.4.0
+google-cloud-storage==1.43.0
 googleapis-common-protos==1.53.0
 html-similarity==0.3.3
 httpretty==0.9.7
 idna==2.10
 parsel==1.6.0
-protobuf==3.15.8
+protobuf==3.19.1
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
-pycparser==2.20
+pycparser==2.21
 pyOpenSSL==20.0.1
-pytz==2021.1
+pytz==2021.3
 PyYAML==5.4.1
 redis==3.5.3
-requests==2.25.1
+requests==2.26.0
 responses==0.13.3
 rq==1.8.0
 rsa==4.7.2
@@ -37,6 +37,6 @@ smmap==3.0.4
 smmap2==2.0.5
 soupsieve==2.2.1
 tenacity==5.1.5
-urllib3==1.26.4
+urllib3==1.26.7
 w3lib==1.22.0
 websocket-client==0.59.0