fix workflows

Author: matth-x

.github/workflows/pio.yml

@@ -18,6 +18,7 @@ jobs:
     strategy:
       matrix:
         example: [examples/ESP/main.cpp, examples/ESP-TLS/main.cpp]
+        pio_platform: [nodemcuv2, esp32-development-board]
 
     steps:
     - uses: actions/checkout@v2
@@ -42,6 +43,6 @@ jobs:
     - name: Install library dependencies
       run: pio pkg install
     - name: Run PlatformIO
-      run: pio ci --lib="." --project-conf=platformio.ini ${{ matrix.dashboard-extra }}
+      run: pio ci --lib="." --project-conf=platformio.ini -e ${{ matrix.pio_platform }} ${{ matrix.dashboard-extra }}
       env:
         PLATFORMIO_CI_SRC: ${{ matrix.example }}

src/MicroOcpp/Context.cpp

@@ -8,6 +8,7 @@
 #include <MicroOcpp/Core/Ftp.h>
 #include <MicroOcpp/Model/Model.h>
 #include <MicroOcpp/Model/Certificates/Certificate.h>
+#include <MicroOcpp/Model/Certificates/CertificateMbedTLS.h>
 
 #include <MicroOcpp/Debug.h>
 
@@ -209,7 +210,7 @@ void Context::setCertificateStore(CertificateStore *certStore) {
 CertificateStore *Context::getCertificateStore() {
     #if MO_ENABLE_CERT_MGMT && MO_ENABLE_CERT_STORE_MBEDTLS
     if (!certStore && filesystem) {
-        certStore = makeCertificateStoreMbedTLS(filesystem);
+        certStore = makeCertificateStoreMbedTLS(filesystem).release();
         if (!certStore) {
             MO_DBG_ERR("OOM");
             return nullptr;