Dependabot does not scan for versions in versions.properties

[saratvemulapalli]

Is your feature request related to a problem? Please describe.
Coming from: #3772 (comment)
Dependabot does a great job of automatically upgrading dependent libraries while checking CVE databases.

For OpenSearch we use versions.properties[1] as a version catalog for all gradle projects within the repository.
Dependabot workflow does not support scanning through this catalog file of versions.

Describe the solution you'd like
Dependabot support for dependencies listed in versions.properties.

[1] https://github.com/opensearch-project/OpenSearch/blob/main/buildSrc/version.properties

[reta]

Related discussions:

• Getting Gradle versions from gradle.properties dependabot/dependabot-core#1618
• Fully Featured Gradle Support with the Gradle Tooling API dependabot/dependabot-core#1164