Fixing failing quarantined test cases in test_task_command

[khalidmammadov]

These test (first 2) cases were broken due to missing self.dagbag and dag_id=test_run_fork_has_external_executor_id.

This PR fixes the issues and makes the test inline with the suite logic/setup and preserves test case's objective.

Test cases fixed in this PR:

• test_external_executor_id_present_for_fork_run_task
• test_external_executor_id_present_for_process_run_task
• test_logging_with_run_task
• test_log_file_template_with_run_task

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[potiuk]

cc: @uranusjr ?

[khalidmammadov]

There is only one test case (test_logging_with_run_task_subprocess) left unfixed in this suite (tests.cli.commands.test_task_command.TestLogsfromTaskRunCommand) so we can un-quarantine it and that is dependent on #19845. Which will help me to fix that last remaining test case as well.
Additionally, some test cases in this suite also being fixed by #19858

[khalidmammadov]

This one also related #19132 and from the same file but not one of the quarantined ones

[potiuk]

can you please rebase it @khalidmammadov ?

[khalidmammadov]

@potiuk done

[potiuk]

Those look good. However - can we just remove the quarantined markers from the class and add them to the two test methods that are still failiing? this will make only the two failing tests skipped @khalidmammadov

[khalidmammadov]

@potiuk done.
I have also got some draft fix for test_logging_with_run_task_subprocess. Will do PR when finished, busy with MyPy work