⬆ Bump idna from 3.14 to 3.15 (#1106)

Bumps [idna](https://github.com/kjd/idna) from 3.14 to 3.15.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.md)
- [Commits](https://github.com/kjd/idna/compare/v3.14...v3.15)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.15'
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

scripts/make_release_requirements.txt

@@ -18,7 +18,7 @@ gitdb==4.0.12
     # via gitpython
 gitpython==3.1.50
     # via -r scripts/make_release_requirements.in
-idna==3.14
+idna==3.15
     # via requests
 pycparser==3.0
     # via cffi