Bump @mui/monorepo digest to b47d30f

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@mui/monorepo	devDependencies	digest	94cc3d0 -> b47d30f

🔡 If you wish to disable git hash updates, add ":disableDigestUpdates" to the extends array in your config.

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