[Dev] archery trigger-bot should use logger.exception

[asfimport]

arrow/dev/archery/archery/bot.py

Lines 145 to 150 in 9c85e54

	except CommandError as e:
	logger.error(e)
	pull.create_issue_comment("```\n{}\n```".format(e.message))
	except Exception as e:
	logger.error(e)
	comment.create_reaction('-1')

We should use logger.exception not logger.error to get the full traceback, else it's harder to tell what happened.

Reporter: David Li / @lidavidm
Assignee: David Li / @lidavidm

PRs and other links:

• GitHub Pull Request #10037

_{Note: This issue was originally created as ARROW-12376. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
Issue resolved by pull request 10037
#10037