Bump agate from 1.7.1 to 1.12.0

Bumps [agate](https://github.com/wireservice/agate) from 1.7.1 to 1.12.0.
- [Changelog](https://github.com/wireservice/agate/blob/master/CHANGELOG.rst)
- [Commits](wireservice/agate@1.7.1...1.12.0)

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

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

dependencies/constraints-bi.txt

@@ -1,4 +1,4 @@
-agate==1.7.1
+agate==1.12.0
 attrs==23.2.0
 Babel==2.14.0
 certifi==2024.2.2