Update roomVersion to v2.6.1 (LawnchairLauncher#3796)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

build.gradle

@@ -370,9 +370,10 @@ dependencies {
     implementation "com.squareup.retrofit2:retrofit:2.9.0"
     implementation "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:1.0.0"
 
-    implementation "androidx.room:room-runtime:$room_version"
-    implementation "androidx.room:room-ktx:$room_version"
-    ksp "androidx.room:room-compiler:$room_version"
+    def roomVersion = '2.6.1'
+    implementation "androidx.room:room-runtime:$roomVersion"
+    implementation "androidx.room:room-ktx:$roomVersion"
+    ksp "androidx.room:room-compiler:$roomVersion"
 
     implementation "com.github.topjohnwu.libsu:core:$libsu_version"
     implementation "com.github.topjohnwu.libsu:service:$libsu_version"