Merge branch 'bugfix/fix_build_cmake_example_failing' into 'master'

Fix false positive errors with CMake example builds

See merge request idf/esp-idf!4608

tools/ci/build_examples_cmake.sh

@@ -143,7 +143,7 @@ build_example () {
         else
             rm -rf build &&
             ./build.sh >>${BUILDLOG} 2>&1
-        fi &&
+        fi ||
         {
             RESULT=$?; FAILED_EXAMPLES+=" ${EXAMPLE_NAME}" ;
         }