Bump black from 19.10b0 to 26.3.1 in /scripts

Bumps [black](https://github.com/psf/black) from 19.10b0 to 26.3.1.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/commits/26.3.1)

---
updated-dependencies:
- dependency-name: black
  dependency-version: 26.3.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

scripts/requirements.txt

@@ -2,7 +2,7 @@
 click==7.1.2
 
 # Dev dependencies
-black==19.10b0
+black==26.3.1
 quom==1.2.0
 Sphinx==3.2.1
 sphinx_material==0.0.30