Use current_thread instead of currentThread method that was deprecated in Python 3.10

[tirkarthi]

Fixes #1464

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@e9eebfb). Click here to learn what that means.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #1465   +/-   ##
=======================================
  Coverage        ?   86.47%           
=======================================
  Files           ?       35           
  Lines           ?     1849           
  Branches        ?      258           
=======================================
  Hits            ?     1599           
  Misses          ?      178           
  Partials        ?       72           

Impacted Files	Coverage Δ
debug_toolbar/panels/logging.py	95.91% <100.00%> (ø)
debug_toolbar/panels/staticfiles.py	95.53% <100.00%> (ø)
debug_toolbar/utils.py	76.15% <100.00%> (ø)

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[matthiask]

Thanks! The current_thread spelling was introduced in Python 2.6 a very long time ago, this is fine :)