build(deps): bump grako from 3.16.5 to 3.99.9 in /prereqs/pips

Bumps [grako](https://bitbucket.org/neogeny/grako) from 3.16.5 to 3.99.9.
- [Commits](https://bitbucket.org/neogeny/grako/commits)

---
updated-dependencies:
- dependency-name: grako
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Diff for: prereqs/pips/app_requirements.txt

@@ -11,7 +11,7 @@ beautifulsoup4==4.13.3
 colorama==0.4.6
 Cython==3.0.12
 filelock==3.18.0
-grako==3.16.5
+grako==3.99.9
 html2text==2024.2.26
 ihm==2.2
 imagecodecs==2024.6.1