Fix platformio docker version mismstch (#3215)

docker/Dockerfile

@@ -45,7 +45,7 @@ RUN \
     # Ubuntu python3-pip is missing wheel
     pip3 install --no-cache-dir \
         wheel==0.37.1 \
-        platformio==5.2.4 \
+        platformio==5.2.5 \
     # Change some platformio settings
     && platformio settings set enable_telemetry No \
     && platformio settings set check_libraries_interval 1000000 \