Bump pycryptodome from 3.20.0 to 3.21.0 (#1711)

Bump pycryptodome from 3.20.0 to 3.21.0 (#1711)

* Bump pycryptodome from 3.20.0 to 3.21.0

Bumps [pycryptodome](https://github.com/Legrandin/pycryptodome) from 3.20.0 to 3.21.0.
- [Release notes](https://github.com/Legrandin/pycryptodome/releases)
- [Changelog](https://github.com/Legrandin/pycryptodome/blob/master/Changelog.rst)
- [Commits](https://github.com/Legrandin/pycryptodome/compare/v3.20.0...v3.21.0)

---
updated-dependencies:
- dependency-name: pycryptodome
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcel van der Veldt <m.vanderveldt@outlook.com>