Automate dependency management in Gradle version catalog

[wangela]

Is your feature request related to a problem? Please describe. Since the migration to version catalogs in PR #185, we lost automated dependency management because our current manger Dependabot does not support Gradle version catalogs.

Describe the solution you'd like Other Google-managed repositories use Renovate which does support version catalogs.

Describe alternatives you've considered

• (status quo) Manual dependency management - longer update intervals, more toil when discovering and reconciling breaking changes in dependencies.
• Wait for Dependabot to add version catalogs support (issue has been opened and not assigned for 18 months).
• Find another tool that can automatically manage depdencies with version catalogs. Please recommend alternatives in comments below!

[yogurtearl]

Renovate is licensed under AGPL. -> https://opensource.google/documentation/reference/using/agpl-policy

[wangela]

@yogurtearl thank you for the flag. That's disappointing.... we'll continue with manual dependency management until Dependabot supports version catalogs or someone can suggest a viable alternative!

[wangela]

Dependabot now supports version catalog.