Bump dev.cel:cel from 0.11.1 to 0.12.0

Bumps [dev.cel:cel](https://github.com/google/cel-java) from 0.11.1 to 0.12.0.
- [Release notes](https://github.com/google/cel-java/releases)
- [Commits](https://github.com/google/cel-java/commits)

---
updated-dependencies:
- dependency-name: dev.cel:cel
  dependency-version: 0.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,7 +1,7 @@
 [versions]
 assertj = "3.27.7"
 buf = "1.66.0"
-cel = "0.11.1"
+cel = "0.12.0"
 error-prone = "2.47.0"
 junit = "5.14.3"
 maven-publish = "0.36.0"