* refactor: ESP32 OTA lib-deps now selectively added

variants/heltec_v2/platformio.ini

@@ -33,6 +33,9 @@ build_flags =
 build_src_filter = ${Heltec_lora32_v2.build_src_filter}
   +<../examples/simple_repeater>
   +<helpers/ui/*.cpp>
+lib_deps =
+  ${Heltec_lora32_v2.lib_deps}
+  ${esp32_ota.lib_deps}
 
 [env:Heltec_v2_room_server]
 extends = Heltec_lora32_v2
@@ -49,6 +52,9 @@ build_flags =
 build_src_filter = ${Heltec_lora32_v2.build_src_filter}
   +<helpers/ui/*.cpp>
   +<../examples/simple_room_server>
+lib_deps =
+  ${Heltec_lora32_v2.lib_deps}
+  ${esp32_ota.lib_deps}
 
 [env:Heltec_v2_terminal_chat]
 extends = Heltec_lora32_v2