CI: use platformio.ini

.gitlab-ci.yml

@@ -9,6 +9,5 @@ before_script:
 job:
   stage: test
   script:
-    - platformio lib update
+    - platformio ci --project-conf platformio.ini --board=heltec_wifi_lora_32
-    - platformio ci --board=heltec_wifi_lora_32
   variables: {PLATFORMIO_CI_SRC: "src"}