Bump version to 2.9.1

Author: mrkiwi

fastlane/metadata/android/en-US/changelogs/29100.txt

@@ -0,0 +1,7 @@
+What's New:
+- Account Setup: Support for in-app account creation and registration.
+- Privy Integration: Link your accounts easily with new Privy support.
+- Mixnet Tuning: New UI to fine-tune your privacy and connection settings.
+- Stability Fixes: Resolved Always-On VPN issues after system restarts and fixed app crashes.
+- Better Connectivity: Improved VPN architecture for more reliable, dynamic reconnections and updated Account Info UI.
+- Updated translations workflow.

nym-vpn-android/buildSrc/src/main/kotlin/Constants.kt

@@ -1,8 +1,8 @@
 import org.gradle.api.JavaVersion
 
 object Constants {
-	const val VERSION_NAME = "v2.9.0"
-    const val VERSION_CODE = 29000
+	const val VERSION_NAME = "v2.9.1"
+    const val VERSION_CODE = 29100
     const val TARGET_SDK = 36
     const val COMPILE_SDK = 36
     const val MIN_SDK = 24