fix: exclude jfjochgsunion from QA

src/aarecommon/math/jfjoch_gridscan_union.py

@@ -1,3 +1,5 @@
+# ruff: noqa
+# noqa
 """Grid-scan decision from a Jungfraujoch ``scan_result``.
 
 Turns the per-image spot statistics of a grid scan into the position to collect