Update dependency cspell to v8.15.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cspell (source)	8.14.4 -> 8.15.1

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Release Notes

streetsidesoftware/cspell (cspell)

v8.15.1

Compare Source

• fix: Sign Published Packages (#​6350) (633b060), closes #​6350

v8.15.0

Compare Source

• chore: bump eslint-plugin-unicorn from 55.0.0 to 56.0.0 (#​6332) (67d1e92), closes #​6332

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