feat(ci): Added ignore warnings file for idf examples build

Author: peter-marcisovsky

.github/ci/.idf_build_examples_config.toml

@@ -12,3 +12,8 @@ target = "all"
 
 # build related options
 build_dir = "build_@t_@w"
+
+# use ignore_build_warnings.txt from esp-idf
+ignore_warning_files = [
+    'tools/ci/ignore_build_warnings.txt',
+]