fix: Travis build (missing dependency)

Author: QuickSander

.travis.yml

@@ -34,7 +34,6 @@ env:
 
 install:
     - pip install -U platformio
-    #- platformio lib -g install WiFi
 
 script:
-    - platformio ci --lib="." --board=esp01 #--board=uno
+    - platformio ci --lib="." --project-conf="platformio.ini"