Update CI.

.github/workflows/compile_library.yml

@@ -14,7 +14,51 @@ on:
 
 jobs:
   build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        board: 
+          - "d1_mini"
+          - "nodemcuv2"
+          - "esp32dev"
+          - "lolin32"
+          - "mkrwifi1010"
+          - "bluepill_f103c8_128k"
+          - "mkr1000USB"
+          - "teensy36"
+          - "teensy41"
+    steps:
+    - uses: actions/checkout@v2
+    - name: Cache pip
+      uses: actions/cache@v2
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: ${{ runner.os }}-pip-
+    - name: Cache PlatformIO
+      uses: actions/cache@v2
+      with:
+        path: ~/.platformio
+        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+    - name: Set up Python
+      uses: actions/setup-python@v2
+    - name: Install PlatformIO
+      run: |
+        python -m pip install --upgrade pip
+        pip install --upgrade platformio
 
+    - name: Create main file
+      run: |
+        echo "#include <Arduino.h>" >> src/main.ino
+        echo "void setup() {}" >> src/main.ino
+        echo "void loop() {}" >> src/main.ino
+
+    - name: Run PlatformIO
+      run: pio ci --board=${{ matrix.board }} src
+
+
+build2:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -57,4 +101,5 @@ jobs:
         echo "void loop() {}" >> src/main.ino
 
     - name: Run PlatformIO
-      run: pio ci --board=${{ matrix.board }} src
+      run: pio ci --project-option="lib_ldf_mode=chain+" --board=nanorp2040connect src
+