style: Run shfmt on workflows and actions

[mathbunnyru]

This:

• unifies bash codestyle inside workflows/actions
• makes .pre-commit-config more like rippled
• bumps actions to incorporate similar changes made there

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.98%. Comparing base (25c0dc6) to head (f52e03f).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #3085   +/-   ##
========================================
  Coverage    81.97%   81.98%           
========================================
  Files          396      396           
  Lines        16021    16021           
  Branches      8376     8376           
========================================
+ Hits         13134    13135    +1     
  Misses        1676     1676           
+ Partials      1211     1210    -1     

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