Merge branch 'bugfix/app_template_build_v3.0' into 'release/v3.0'

esp-idf-template app: some fixes for the updated template app (backport v3.0)

See merge request idf/esp-idf!3702

.gitlab-ci.yml

@@ -85,12 +85,15 @@ build_template_app:
     BATCH_BUILD: "1"
     IDF_CI_BUILD: "1"
   script:
-    - git clone https://github.com/espressif/esp-idf-template.git
+    # Set the variable for 'esp-idf-template' testing
+    - ESP_IDF_TEMPLATE_GIT=${ESP_IDF_TEMPLATE_GIT:-"https://github.com/espressif/esp-idf-template.git"}
+    - git clone ${ESP_IDF_TEMPLATE_GIT}
     - cd esp-idf-template
     # Try to use the same branch name for esp-idf-template that we're
     # using on esp-idf. If it doesn't exist then just stick to the default
     # branch
     - python $CHECKOUT_REF_SCRIPT esp-idf-template
+    - make defconfig
     # Test debug build (default)
     - make all V=1
     # Now test release build