Update ghcr.io/rails/devcontainer/images/ruby:3.2.9 Docker digest to cb60d6c

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/rails/devcontainer/images/ruby	final	digest	506102b -> cb60d6c

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[coveralls]

Pull Request Test Coverage Report for Build 18383221864

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 98.242%

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Totals
Change from base Build 18383203860:	0.0%
Covered Lines:	838
Relevant Lines:	853

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💛 - Coveralls