Fix traceback with weird debug level, but ruff is unhappy

Traceback (most recent call last):
  File "/home/psss/.local/share/hatch/env/virtual/tmt/v_yBwOy-/dev/bin/tmt", line 5, in <module>
    from tmt.__main__ import run_cli
  File "/home/psss/git/tmt/tmt/__init__.py", line 20, in <module>
    from tmt.base import Clean, Plan, Run, Status, Story, Test, Tree
  File "/home/psss/git/tmt/tmt/base.py", line 57, in <module>
    import tmt.utils.jira
  File "/home/psss/git/tmt/tmt/utils/jira.py", line 21, in <module>
    tmt.log.Logger.get_bootstrap_logger())
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/psss/git/tmt/tmt/log.py", line 871, in get_bootstrap_logger
    cls._bootstrap_logger = Logger.create(actual_logger=actual_logger)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/psss/git/tmt/tmt/log.py", line 686, in create
    return Logger(
           ^^^^^^^
  File "/home/psss/git/tmt/tmt/log.py", line 629, in apply_verbosity_options
    debug_level_from_global_envvar = _debug_level_from_global_envvar()
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/psss/git/tmt/tmt/log.py", line 123, in _debug_level_from_global_envvar
    raise tmt.utils.GeneralError(f"Invalid debug level '{raw_value}', use an integer.")
tmt.utils.GeneralError: Invalid debug level 'weird', use an integer.

tmt/base.py

@@ -54,7 +54,6 @@
 import tmt.templates
 import tmt.utils
 import tmt.utils.git
-import tmt.utils.jira
 from tmt.checks import Check
 from tmt.lint import LinterOutcome, LinterReturn
 from tmt.result import Result
@@ -1292,6 +1291,7 @@ def _get_template_content(template: str, template_type: str) -> str:
                 force=force,
                 logger=logger)
 
+            import tmt.utils.jira
             if links.get('verifies') and dry is False:
                 tests = Tree(
                     path=path,
@@ -2027,6 +2027,7 @@ def create(
                 force=force,
                 logger=logger)
 
+            import tmt.utils.jira
             if links.get('verifies') and dry is False:
                 plans = Tree(
                     path=path,
@@ -2749,6 +2750,7 @@ def create(
                 force=force,
                 logger=logger)
 
+            import tmt.utils.jira
             if links.get('verifies') and dry is False:
                 stories = Tree(
                     path=path,