Update dependency immer to v9.0.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
immer	9.0.12 -> 9.0.21

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Release Notes

immerjs/immer (immer)

v9.0.21

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Bug Fixes

• ensure type exports is first in package.json export declaration (#​1018) (b6ccd0f)

v9.0.20

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Bug Fixes

• patching maps failed when using number keys (#​1025) (dd83e2e)

v9.0.19

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Bug Fixes

• don't freeze drafts returned from produce if they were passed in as draft (#​917) (46867f8)
• produce results should never be frozen when returned from nested produces, to prevent 'hiding' drafts. Fixes #​935 (a810960)
• release and publish from 'main' rather than 'master' branch (82acc40)
• revert earlier fix (#​990) for recursive types (#​1014) (3eeb331)
• Upgrade Github actions to Node 16 attempt 1 (9d4ea93)
• Upgrade Github actions to Node 16 attempt 2 (082eecd)

v9.0.18

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Bug Fixes

• Preserve insertion order of Sets, fixes #​819 (#​976) (b3eeb69)
• unnecessarily recursive Draft type (#​990) (b9eae1d)

v9.0.17

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Bug Fixes

• special case NaN in setter (#​912) (5721bb7)

v9.0.16

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Bug Fixes

• protect isDraftable against undefined constructor (#​969) (ced4563)

v9.0.15

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Bug Fixes

• Add "types" to exports for TypeScript 4.7 (#​946) (85ce6b7)

v9.0.14

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Bug Fixes

• Use .esm.js module for backwards compatibility with old build tools (#​939) (d30d219)

v9.0.13

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Bug Fixes

• consistent recipe return type in produceWithPatches (#​934) (220d61d)
• incorrect return type for async produceWithPatches (#​933) (9f7623d)

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