cubicweb-subprocess #10624160 compatibility with cw 3.22 [validation pending]

Binary is now a BytesIO

prioritynormal
typeenhancement
done in0.3.0
load left0.000
closed by#8381a7653419 [entities] cw 3.22: Binary is now a BytesIO (closes #10624160)
patch[test] make hook tests pass with cubicweb 3.22 (related to #10624160) [applied][entities] cw 3.22: Binary is now a BytesIO (closes #10624160) [applied]