vendor(simplecpp): Update PythonQt-specific patch to account for upstream changes

This commit updates simplecpp patch `do_not_stop_on_error.patch` to account
for upstream changes introduced through the commit danmar/simplecpp@3911fdd ("fixed some `Variable copied when it could be moved` Coverity warnings (#495)", 2025-08-29)

Author: jcfr

generator/simplecpp/do_not_stop_on_error.patch

@@ -1,10 +1,10 @@
-diff --git generator/simplecpp/simplecpp.cpp generator/simplecpp/simplecpp.cpp
-index 3e9dda6c..ee8f7f7c 100644
---- generator/simplecpp/simplecpp.cpp
-+++ generator/simplecpp/simplecpp.cpp
-@@ -3455,10 +3455,12 @@ void simplecpp::preprocess(simplecpp::TokenList &output, const simplecpp::TokenL
+diff --git a/generator/simplecpp/simplecpp.cpp b/generator/simplecpp/simplecpp.cpp
+index 84e4b54b..88cedd4e 100644
+--- a/generator/simplecpp/simplecpp.cpp
++++ b/generator/simplecpp/simplecpp.cpp
+@@ -3391,10 +3391,12 @@ void simplecpp::preprocess(simplecpp::TokenList &output, const simplecpp::TokenL
                      err.msg = '#' + rawtok->str() + ' ' + err.msg;
-                     outputList->push_back(err);
+                     outputList->push_back(std::move(err));
                  }
 +/* Patched for PythonQt generator: Do not stop on #error directive:
                  if (rawtok->str() == ERROR) {