Bump idna from 3.19 to 3.20 (#119)

Bumps [idna](https://github.com/kjd/idna) from 3.19 to 3.20.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.md)
- [Commits](kjd/idna@v3.19...v3.20)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.20'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 charset-normalizer==3.5.1
-idna==3.19
+idna==3.20
 PyATEMMax==1.0b9
 Send2Trash==2.1.0
 six==1.17.0