Set h5py version, add xarray

Makefile

 PYPI = pip install --index-url "https://devpi.exfldadev01.desy.de/root/pypi"
 PROXIED = pip install --proxy "http://exflproxy01.desy.de:3128"
 
-.PHONY: all cupy jinja2 h5py extra-geom calng
+.PHONY: all cupy jinja2 h5py xarray extra-geom posixshmem calng
 
 all: calng
 
@@ -11,8 +11,12 @@ cupy:
 jinja2:
 	$(PYPI) Jinja2==3.1.2
 
+# version: follow minimum used by EXtra-data
 h5py:
-	$(PYPI) h5py
+	$(PYPI) h5py>=2.10
+
+xarray:
+	$(PYPI) xarray
 
 extra-geom:
 	$(PYPI) extra_geom==1.11.0