feat(build): Default warnings to be considered as errors

Author: KonstantinKondrashov

Kconfig

@@ -575,7 +575,7 @@ mainmenu "Espressif IoT Development Framework Configuration"
 
         config COMPILER_DISABLE_DEFAULT_ERRORS
             bool "Disable errors for default warnings"
-            default "y"
+            default "n"
             help
                 Enable this option if you do not want default warnings to be considered as errors,
                 especially when updating IDF.

docs/en/migration-guides/release-6.x/6.0/build-system.rst

@@ -79,3 +79,8 @@ Changes in Configuration Files Syntax
 -------------------------------------
 
 ESP-IDF v6 uses esp-idf-kconfig v3, which introduces several changes in the configuration (``Kconfig``) files. For the full list of changes, please refer to the `esp-idf-kconfig migration guide from v2.x to v3.x <https://docs.espressif.com/projects/esp-idf-kconfig/en/latest/developer-guide/migration-guide.html>`_.
+
+Compiler Options
+----------------
+
+The default compiler warnings will be considered as errors. The configuration option :ref:`CONFIG_COMPILER_DISABLE_DEFAULT_ERRORS` has been changed to N.