Use a constant version code in debug

This makes building debug APKs faster, and avoids requiring Git on CI.

app/build.gradle.kts

@@ -31,7 +31,6 @@ android {
         applicationId = "com.pixelized.rplexicon"
         minSdk = 26
         targetSdk = 33
-        versionCode = gitBuildNumber
         versionName = "0.2.3"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
@@ -46,6 +45,9 @@ android {
             isDebuggable = true
             isMinifyEnabled = false
             signingConfig = signingConfigs.getByName("debug")
+            defaultConfig {
+                versionCode = 999999
+            }
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"
             )
@@ -54,6 +56,9 @@ android {
             isDebuggable = false
             isMinifyEnabled = true
             signingConfig = signingConfigs.getByName("pixelized")
+            defaultConfig {
+                versionCode = gitBuildNumber
+            }
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro"
             )