Bump maven-publish from 0.30.0 to 0.31.0

Bumps `maven-publish` from 0.30.0 to 0.31.0.

Updates `com.vanniktech:gradle-maven-publish-plugin` from 0.30.0 to 0.31.0
- [Release notes](https://github.com/vanniktech/gradle-maven-publish-plugin/releases)
- [Changelog](https://github.com/vanniktech/gradle-maven-publish-plugin/blob/main/CHANGELOG.md)
- [Commits](vanniktech/gradle-maven-publish-plugin@0.30.0...0.31.0)

Updates `com.vanniktech.maven.publish.base` from 0.30.0 to 0.31.0
- [Release notes](https://github.com/vanniktech/gradle-maven-publish-plugin/releases)
- [Changelog](https://github.com/vanniktech/gradle-maven-publish-plugin/blob/main/CHANGELOG.md)
- [Commits](vanniktech/gradle-maven-publish-plugin@0.30.0...0.31.0)

---
updated-dependencies:
- dependency-name: com.vanniktech:gradle-maven-publish-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: com.vanniktech.maven.publish.base
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ buf = "1.50.0"
 cel = "0.5.1"
 ipaddress = "5.5.1"
 junit = "5.12.0"
-maven-publish = "0.30.0"
+maven-publish = "0.31.0"
 # When updating, make sure to update versions in the following files to match and regenerate code with 'make generate'.
 # - buf.gen.yaml
 # - conformance/buf.gen.yaml