Gradle plugin does not work with Gradle version +6.8

[sugarmanz]

Describe the bug

The Gradle release plugin is generating the version commits, which causes Auto to fail when it tries to commit. The Gradle Auto plugin is using the -x Gradle CLI flag to prevent certain tasks from running, however, on the newer versions of Auto, they are running anyways.

Expected behavior

The Gradle release plugin should not be generating commits, as Auto will take care of that.

Additional context

Briefly looked into why Gradle behavior changed, but didn't find much except for this maybe-related issue:
gradle/gradle#17989

[sugarmanz]

Given that the Gradle issue has not been tackled yet, this could most likely be solved on this side by changing the way we invoke the Release plugin:
https://github.com/intuit/auto/blob/main/plugins/gradle/src/index.ts#L115

Rather than invoking the top-level release task with exclusions and relying on that to build, the plugin could just explicitly call the tasks required to perform release (i.e. build & updateNewVersion).
https://github.com/intuit/auto/blob/main/plugins/gradle/src/index.ts#L125

[sugarmanz]

Fixed with #2116 & #2118