fix: update repeater MQTT partition layouts for 4 MB boards

variants/thinknode_m2/platformio.ini

@@ -39,6 +39,7 @@ build_src_filter = ${esp32_base.build_src_filter}
 lib_deps = ${esp32_base.lib_deps}
   adafruit/Adafruit SH110X @ ~2.1.13
   adafruit/Adafruit GFX Library @ ^1.12.1
+  end2endzone/NonBlockingRTTTL @ ^1.4.0
 
 [env:ThinkNode_M2_Repeater]
 extends = ThinkNode_M2