fix(shortint): add ciphertext_modulus_after_packing_ks to compression… #6263

Job	Run time
should-run	4s
check-user-permission / check-actor-permission	4s
Setup instance (fast-tests)	1m 1s
Fast CPU tests	1h 17m 37s
Teardown instance (fast-tests)	25s
	1h 19m 11s

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