Recognize Andreas Buhr

Great work adapting GoldenCheetah code to Qt6
https://github.com/GoldenCheetah/GoldenCheetah/commits?author=andreasbuhr

src/Gui/AboutDialog.cpp

@@ -117,6 +117,7 @@ ContributorsPage::ContributorsPage(Context *context) : context(context)
     contributors.append("Alex Harsanyi");
     contributors.append("Alexandre Prokoudine");
     contributors.append("Andre Heider");
+    contributors.append("Andreas Buhr");
     contributors.append("Andrew Bryson");
     contributors.append("Andy Froncioni");
     contributors.append("Antonius Riha");