Bump references to Android Gradle Plugin from 8.6.0-alpha01 to 8.6.0-…

…alpha02 (#705)

This PR bumps references to the Android Gradle Plugin from 8.6.0-alpha01
to 8.6.0-alpha02.

The following changes are required in order to test a new version of the
Android Gradle Plugin:

- [Update the
versions.json](https://github.com/gradle/android-cache-fix-gradle-plugin/blob/main/src/main/resources/versions.json)
with the latest support version, and possibly Gradle versions
- [Edit
WorkaroundTest](https://github.com/gradle/android-cache-fix-gradle-plugin/blob/main/src/test/groovy/org/gradle/android/WorkaroundTest.groovy)
to add or update the latest version's expectations
- [Copy or rename the expected outcome
file](https://github.com/gradle/android-cache-fix-gradle-plugin/tree/main/src/test/resources/expectedOutcomes)

Here is an example PR for reference:
https://github.com/gradle/android-cache-fix-gradle-plugin/pull/642/files

src/main/resources/versions.json

@@ -1,6 +1,6 @@
 {
     "supportedVersions": {
-        "8.6.0-alpha01": [
+        "8.6.0-alpha02": [
             "8.7"
         ],
         "8.5.0-beta02": [

src/test/groovy/org/gradle/android/WorkaroundTest.groovy

@@ -12,7 +12,7 @@ class WorkaroundTest extends Specification {
         workarounds.collect { it.class.simpleName.replaceAll(/Workaround/, "") }.sort() == expectedWorkarounds.sort()
         where:
         androidVersion  | expectedWorkarounds
-        "8.6.0-alpha01" | ['JdkImage']
+        "8.6.0-alpha02" | ['JdkImage']
         "8.5.0-beta02"  | ['JdkImage']
         "8.4.0"         | ['JdkImage']
         "8.3.2"         | ['MergeSourceSetFolders', 'JdkImage']