Update TryGhost packages

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@tryghost/color-utils (source)	0.2.10 → 0.2.12
@tryghost/helpers (source)	1.1.97 → 1.1.99
@tryghost/string (source)	0.2.17 → 0.2.20

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Release Notes

TryGhost/SDK (@​tryghost/color-utils)

v0.2.12

Compare Source

TryGhost/SDK (@​tryghost/helpers)

v1.1.99

Compare Source

TryGhost/SDK (@​tryghost/string)

v0.2.20

Compare Source

v0.2.19

Compare Source

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Configuration

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♻ Rebasing: Never, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.87%. Comparing base (104aa5c) to head (5319af7).
⚠️ Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1646   +/-   ##
=======================================
  Coverage   90.87%   90.87%           
=======================================
  Files         188      188           
  Lines       17887    17887           
  Branches     2000     2000           
=======================================
  Hits        16254    16254           
  Misses       1622     1622           
  Partials       11       11           

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