fix: Don't remove parenthesis around long dictionary values

[cobaltt7]

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Description

Resolves #4158 (string_processing and wrap_long_dict_values_in_parens) Resolves #3452 (wrap_long_dict_values_in_parens)

Still need to move to the preview style & add changelog entry

Checklist - did you ...

• [n] Add an entry in CHANGES.md if necessary?
• [y] Add / update tests if necessary?
• [-] Add new / update outdated documentation?

[github-actions[bot]]

diff-shades reports zero changes comparing this PR (9140aa2dce538f49ceccece7e999c8226ed2c820) to main (b677a643c5322b6af2dbca1f8f7a4f8c98e732aa).

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What is this? | Workflow run | diff-shades documentation

[cobaltt7]

Ready for review. Not sure why CI is failing; seems unrelated to my PR.