Merge branch 'fix/close_constant_h5file' into 'master'

close h5file properly

See merge request detectors/pycalibration!314

cal_tools/cal_tools/agipdlib.py

@@ -1655,8 +1655,8 @@ class AgipdCorrections:
         for cname, mdata in const_yaml[dname].items():
             when[cname] = mdata["creation-time"]
             if when[cname]:
-                cf = h5py.File(mdata["file-path"])
-                cons_data[cname] = np.copy(cf[f"{dname}/{cname}/0/data"])
+                with h5py.File(mdata["file-path"], "r") as cf:
+                    cons_data[cname] = np.copy(cf[f"{dname}/{cname}/0/data"])
             else:
                 # Create empty constant using the list elements
                 cons_data[cname] = \