[DOP-28167] Slots on worker handlers support inheritance

[dolfinus]

Change Summary

Actually, onETL hooks can detect that they were called from inherited class, and not from main class.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[github-actions]

Coverage Report •

File	Stmts	Miss	Cover	Missing
syncmaster/worker/handlers/db
hive.py	42	1	97%	58
iceberg.py	36	20	44%	29, 53–55, 58–62, 64–66, 68–71, 73, 75, 78, 81
mssql.py	32	1	96%	58
mysql.py	34	1	97%	55
oracle.py	34	1	97%	59
syncmaster/worker/handlers/file
local_df.py	69	2	97%	57, 61
remote_df.py	31	2	93%	36, 40
TOTAL	4947	301	93%

[marashka]

You're right, but inheritance also inherits connected hooks, and we don't need this for open liniage, we want to have separate liniage logic for each database.

Check this out:

`from onetl.hooks import hook, slot, support_hooks

@support_hooks
class SomeTestHook:
@slot
def test_method(self):
return "Hello"

class NewHook(SomeTestHook):
pass

@SomeTestHook.test_method.bind
@hook
def open_liniage_event_1(self):
print("Hook event 1")

@NewHook.test_method.bind
@hook
def open_liniage_even_2(self):
print("Hook event 2")

SomeTestHook().test_method()`

[dolfinus]

Oh, I see