fix(ci): allow unsecure node version for self hosted runner

Author: surengab

.github/workflows/modem__target-test.yml

@@ -69,12 +69,12 @@ jobs:
       - modem
     env:
       TEST_DIR: components/esp_modem/${{ matrix.test.path }}
+      ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
     steps:
       - name: Clear repository
         run: |
           sudo rm -fr $GITHUB_WORKSPACE && mkdir $GITHUB_WORKSPACE
-      - name: Checkout repository with sparse-checkout
-        uses: actions/checkout@v3
+      - uses: actions/checkout@v3
       - uses: actions/download-artifact@v3
         with:
           name: modem_target_bin_${{ matrix.idf_target }}_${{ matrix.idf_ver }}_${{ matrix.test.app }}