Fix mutations in tables with columns of type Object

[CurtizJ]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in official stable or prestable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Fix execution of mutations in tables, in which there exist columns of type Object. Using subcolumns of type Object in WHERE expression of UPDATE or DELETE queries is now allowed yet, as well as manipulating (DROP, MODIFY) of separate subcolumns. Fixes #37205.

[tavplubix]

@Avogar, you forgot to take a look at failed tests before merging. Looks like 00991_system_parts_race_condition_long failure was related and it became flaky in this PR:
https://play.clickhouse.com/play?user=play#c2VsZWN0IAp0b1N0YXJ0T2ZIb3VyKGNoZWNrX3N0YXJ0X3RpbWUpIGFzIGQsCmNvdW50KCksIGdyb3VwVW5pcUFycmF5KHB1bGxfcmVxdWVzdF9udW1iZXIpCmZyb20gY2hlY2tzIHdoZXJlICcyMDIyLTAzLTAxJyA8PSBjaGVja19zdGFydF90aW1lIGFuZCB0ZXN0X25hbWUgbGlrZSAnMDA5OTFfc3lzdGVtX3BhcnRzX3JhY2VfY29uZGl0aW9uX2xvbmcnIGFuZCB0ZXN0X3N0YXR1cyBpbiAoJ0ZBSUwnLCAnRkxBS1knLCAnRVJST1InKSBncm91cCBieSBkIG9yZGVyIGJ5IGQgZGVzYw==

I will try to revert