Bump check-manifest from 0.45 to 0.46

Bumps [check-manifest](https://github.com/mgedmin/check-manifest) from 0.45 to 0.46.
- [Release notes](https://github.com/mgedmin/check-manifest/releases)
- [Changelog](https://github.com/mgedmin/check-manifest/blob/master/CHANGES.rst)
- [Commits](mgedmin/check-manifest@0.45...0.46)

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

Author: dependabot-preview[bot]

dev-requirements.txt

@@ -4,7 +4,7 @@ Sphinx==3.4.1
 VWS-Test-Fixtures==2020.9.25.1
 autoflake==1.4
 black==20.8b1
-check-manifest==0.45
+check-manifest==0.46
 doc8==0.8.1
 docker==4.4.1
 dodgy==0.2.1  # Look for uploaded secrets