fix: File Provider adding zero bytes at the end of the data when saving

Fixes #835

lib/external/pattern_language

@@ -1 +1 @@
-Subproject commit 254b86d9519012985e9e9eaba35b9ead9be56c52
+Subproject commit ffa76d3db453f92340448179c7f2982c1a6ba5f4

plugins/builtin/source/content/providers/file_provider.cpp

@@ -86,7 +86,7 @@ namespace hex::plugin::builtin {
                     bufferSize = provider->getActualSize() - offset;
 
                 provider->read(offset + this->getBaseAddress(), buffer.data(), bufferSize);
-                file.write(buffer);
+                file.write(buffer.data(), bufferSize);
             }
         }
     }