Try and install openssl dependency

.github/workflows/examples.yml

@@ -11,6 +11,8 @@ jobs:
         example:
           - "examples/arduino-blink"
           - "examples/arduino-wifi-scan"
+          - "examples/arduino-ota"
+          - "examples/arduino-signed-ota"
           - "examples/arduino-external-libs"
     runs-on: ${{ matrix.os }}
     steps:
@@ -25,6 +27,17 @@ jobs:
         run: |
           pip install -U https://github.com/platformio/platformio/archive/develop.zip
           pio pkg install --global --platform symlink://.
+          if [ "$RUNNER_OS" == "Linux" ]; then
+            apt install openssl
+          elif [ "$RUNNER_OS" == "Windows" ]; then
+            choco install openssl
+          elif [ "$RUNNER_OS" == "Mac" ]; then
+            brew install openssl
+          else
+            echo "$RUNNER_OS not supported"
+            exit 1
+          fi
+        shell: bash
       - name: Build examples
         run: |
           pio run -d ${{ matrix.example }}