[Renovate Bot] Update tested AGP versions to v9.0.0-alpha08 (#1897)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
|
[com.android.tools.build:gradle](https://developer.android.com/studio/build)
([source](https://android.googlesource.com/platform/tools/base)) |
`9.0.0-alpha07` -> `9.0.0-alpha08` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/com.android.tools.build:gradle/9.0.0-alpha08?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.android.tools.build:gradle/9.0.0-alpha07/9.0.0-alpha08?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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Author: tylerbertrand

gradle.properties

@@ -6,4 +6,4 @@ org.gradle.kotlin.dsl.allWarningsAsErrors=true
 
 systemProp.pts.enabled=true
 
-org.gradle.android.latestKnownAgpVersion=9.0.0-alpha07
+org.gradle.android.latestKnownAgpVersion=9.0.0-alpha08

src/test/resources/versions.json

@@ -1,6 +1,6 @@
 {
     "testedVersions": {
-        "9.0.0-alpha07": [
+        "9.0.0-alpha08": [
            "9.0.0"
         ],
         "8.13.0": [