Adapt to multi_groups modifications

[QU3B1M]

Related issue
#3369

Description

This PR aims to fix future errors that will occur when the changes from 15074 are implemented in wazuh master. It does not implement any new test case, it is just a fix to avoid existing test cases to fail.

Updated

• Modify callback_pattern in deps/wazuh_testing/wazuh_testing/remote.py
• Modify expected condition in tests/integration/test_remoted/test_multi_groups/test_merged_mg_file_content.py

Testing performed

Tester	Test path	Jenkins	Local	OS	Commit	Notes
@QU3B1M(Developer)	integration/test_remoted/test_multi_groups/test_merged_mg_file_content.py	🟢 🟢 🟢	🟢 🟢 🟢	Ubuntu 20	2e1d85b	Nothing to highlight
@user (Reviewer)		⚫⚫⚫	🚫 🚫 🚫			Nothing to highlight

[QU3B1M]

Linting fails

The actual linting errors are in a part of the code that is unaffected by this commit, take note that this just a hotfix to adapt the actual code to the multi_groups modifications, it does not include any new test case nor major modification, only minor changes.
This is a modification by @TomasTurina that I normalized and then created this PR