[tor-bugs] #29533 [Core Tor/Tor]: Lint all our shell scripts with shellcheck on CI

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#29533: Lint all our shell scripts with shellcheck on CI
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     Reporter:  rl1987        |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: unspecified
    Component:  Core Tor/Tor  |    Version:
     Severity:  Normal        |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
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 We have stuff in scripts directory being linted by shellcheck on every CI
 , but not stuff in e.g. tests/ and contrib/. We should do so when we are
 done systematically cleaning up our shell scripts to make them pass
 shellcheck without any warnings.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29533>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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