build(deps): bump idna from 3.2 to 3.7 in /20-executors/getflags

Bumps [idna](https://github.com/kjd/idna) from 3.2 to 3.7.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](kjd/idna@v3.2...v3.7)

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

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

Author: dependabot[bot]

20-executors/getflags/requirements.txt

@@ -4,7 +4,7 @@ charset-normalizer==2.0.6
 h11==0.12.0
 httpcore==0.13.7
 httpx==1.0.0b0
-idna==3.2
+idna==3.7
 rfc3986==1.5.0
 sniffio==1.2.0
 tqdm==4.62.3