Bump idna from 2.10 to 3.7 in the pip group across 1 directory

Bumps the pip group with 1 update in the / directory: [idna](https://github.com/kjd/idna).


Updates `idna` from 2.10 to 3.7
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](kjd/idna@v2.10...v3.7)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.7'
  dependency-type: direct:production
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -5,7 +5,7 @@ cryptography==3.4.7
 delegator.py==0.1.1
 docker==5.0.0
 english==2020.7.0
-idna==2.10
+idna==3.7
 monotonic==1.6
 neotime==1.7.4
 packaging==20.9