gradle: Suffix last git commit's hash into versionName

* Only for debug and nightlies

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/build.gradle.kts

@@ -37,6 +37,10 @@ kotlin {
     jvmToolchain(17)
 }
 
+val gitHash: String
+    get() = project.providers.exec { commandLine("git", "rev-parse", "--short", "HEAD") }
+        .standardOutput.asText.get().trim()
+
 android {
     namespace = "com.aurora.store"
     compileSdk = 35
@@ -92,11 +96,13 @@ android {
         register("nightly") {
             initWith(getByName("release"))
             applicationIdSuffix = ".nightly"
+            versionNameSuffix = "-$gitHash"
         }
 
         debug {
             applicationIdSuffix = ".debug"
             signingConfig = signingConfigs.getByName("aosp")
+            versionNameSuffix = "-$gitHash"
         }
     }