build: update dependencies (#11)

* build: update dependencies
* ci: migrate from Travis CI to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: CI
+
+on: [push]
+
+env:
+  PIO_FIRMWARE_URL: "http://foo.bar/firmware.com"
+  PIO_MQTT_HOST_IP: 127.0.0.1
+  PIO_MQTT_PORT: 1883
+  PIO_MQTT_TOPIC: topic
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools wheel cpplint platformio
+          cp platformio.ini.dist platformio.ini
+          pio pkg update
+      - name: Lint
+        run: cpplint --recursive src include lib
+      - name: Compile
+        run: platformio run

README.md

@@ -1,6 +1,6 @@
 ![esp-modbus-mqtt: A Modbus RTU (RS-485) to MQTT Gateway (based on ESP32)](./assets/banner.png)
 
-[![Build Status](https://travis-ci.com/gmasse/esp-modbus-mqtt.svg?branch=master)](https://travis-ci.com/gmasse/esp-modbus-mqtt)
+![CI workflow](https://github.com/gmasse/esp-modbus-mqtt/actions/workflows/ci.yml/badge.svg)
 
 ## Circuit
 

platformio.ini.dist

@@ -10,10 +10,10 @@
 
 [common]
 lib_deps_external =
-  ModbusMaster@~2.0.1
-  AsyncMqttClient@~0.8.2
-  ArduinoJson@~6.14.1
-  https://github.com/tzapu/WiFiManager.git#4a98ba0e29606c684e66fa80e53f1293a269540b
+  4-20ma/ModbusMaster@~2.0.1
+  marvinroger/AsyncMqttClient@~0.9.0
+  bblanchon/ArduinoJson@~7.0.4
+  https://github.com/tzapu/WiFiManager.git#v2.0.17
 
 [extra]
 monitor_speed = 115200