[fix] Disable clang-diagnostic-error checker

It is a fix PR to disable clang-diagnostic-error checker in cmd. Now, the users cannot set this checker as enabled with -e.

analyzer/codechecker_analyzer/analyzers/clangtidy/config_handler.py

@@ -46,8 +46,8 @@ def set_checker_enabled(self, checker_name, enabled=True):
         """
         Enable checker, keep description if already set.
         """
-        if checker_name.startswith('W') or \
-           checker_name.startswith('clang-diagnostic'):
+        if checker_name.startswith(('W', 'clang-diagnostic')) and \
+           checker_name != 'clang-diagnostic-error':
             self.add_checker(checker_name)
 
         super().set_checker_enabled(checker_name, enabled)