dev-deps: update dependency chromatic to v11.5.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
chromatic (source)	11.5.4 -> 11.5.6

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Release Notes

chromaui/chromatic-cli (chromatic)

v11.5.6

Compare Source

🐛 Bug Fix

• Support non-local ancestor builds with uncommittedHash #​1015 (@​skitterm @​tmeasday)

Authors: 2

• Steven Kitterman (@​skitterm)
• Tom Coleman (@​tmeasday)

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v11.5.5

Compare Source

🐛 Bug Fix

• Add missing skipUpdateCheck option to config schema #​1011 (@​ryan-case-ml)

Authors: 1

• Ryan Case (@​ryan-case-ml)

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