[READY TO SHIP] - Dependabot Updates can keep Gradle Version Catalogs up to date - [GA] (#35275)

Co-authored-by: Melanie Yarbrough <11952755+myarb@users.noreply.github.com>

data/features/dependabot-updates-gradle-versions-catalog-support.yml

@@ -0,0 +1,5 @@
+# Reference: Issue #9709 -  Dependabot Updates can keep Gradle Version Catalogs up to date - [GA]
+versions:
+  fpt: '*'
+  ghec: '*'
+  ghes: '>3.8'

data/reusables/dependabot/supported-package-managers.md

@@ -42,7 +42,10 @@ Terraform      | `terraform`      | >= 0.13, <= 1.3.x  | {% octicon "check" aria
 
 [2] {% data variables.product.prodname_dependabot %} only supports updates to {% data variables.product.prodname_actions %} using the {% data variables.product.prodname_dotcom %} repository syntax, such as {% data reusables.actions.action-checkout %}. Docker Hub and {% data variables.product.prodname_registry %} {% data variables.product.prodname_container_registry %} URLs are currently not supported.
 
-[3] {% data variables.product.prodname_dependabot %} doesn't run Gradle but supports updates to the following files: `build.gradle`, `build.gradle.kts` (for Kotlin projects), and files included via the `apply` declaration that have `dependencies` in the filename. Note that `apply` does not support `apply to`, recursion, or advanced syntaxes (for example, Kotlin's `apply` with `mapOf`, filenames defined by property).
+[3] {% data variables.product.prodname_dependabot %} doesn't run Gradle but supports updates to the following files:
+   - `build.gradle`, `build.gradle.kts` (for Kotlin projects){% ifversion dependabot-updates-gradle-versions-catalog-support %}
+   - `gradle/libs.versions.toml` (for projects using a standard Gradle version catalog){% endif %}
+   - Files included via the `apply` declaration that have `dependencies` in the filename. Note that `apply` does not support `apply to`, recursion, or advanced syntaxes (for example, Kotlin's `apply` with `mapOf`, filenames defined by property).
 
 [4] {% data variables.product.prodname_dependabot %} doesn't run Maven but supports updates to `pom.xml` files.