fix(idempotency): sorting keys before hashing

[heitorlessa]

Issue #, if available: #638

Description of changes:

Checklist

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

Breaking change checklist

RFC issue #:

• Migration process documented
• Implement warnings (if it can live side by side)

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

Merging #639 (96cbdc1) into develop (27e3930) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff            @@
##           develop     #639   +/-   ##
========================================
  Coverage    99.97%   99.97%           
========================================
  Files          116      116           
  Lines         4846     4846           
  Branches       265      265           
========================================
  Hits          4845     4845           
  Partials         1        1           

Impacted Files	Coverage Δ
...wertools/utilities/idempotency/persistence/base.py	99.36% <100.00%> (ø)

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