Update dependency tsup to v5.12.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
tsup	5.11.11 -> 5.12.9

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Release Notes

egoist/tsup

v5.12.9

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Bug Fixes

• deps: Update rollup and rollup-plugin-dts to latest versions (#​632) (a792668)

Features

• minor: allow tsup config function to be asynchronous (#​627) (ad2629a)

v5.12.8

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Bug Fixes

• update source-map to 0.8.0-beta.0, closes #​623 (c67e03d)

v5.12.7

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Bug Fixes

• define a build-time constant called TSUP_FORMAT (f4a56ed)
• resolve to package.json only if tsup key exists (#​622) (67eea53)

v5.12.6

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Bug Fixes

• dts: use relative baseUrl in tsconfig, closes #​611 (df40e12)

v5.12.5

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Bug Fixes

• Exit Code returns 0 for failed builds, closes #​606 (b3ad95f)

v5.12.4

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Bug Fixes

• make sure sources are relative path in sourcemap, closes #​603 (637ec28)
• reject promise with an error (401e204)

v5.12.3

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Bug Fixes

• don't treat .node.js as native node module, closes #​589 (e5fe1c1)

v5.12.2

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Bug Fixes

• build promise resolves before types are emitted (#​597) (d30f813)

v5.12.1

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Bug Fixes

• regression: entry gets ignored if it is an object, closes #​583 (b480486)

v5.12.0

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Bug Fixes

• exclude banner and footer in the options for rollup (4cc7ea7)
• unlink the outDir twice will report an error (#​569) (5bd6819)

Features

• allow banner and footer to a function (2521e9f)

v5.11.13

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Bug Fixes

• ignore non js/ts files in --dts build, closes #​554 (20fb72b)

v5.11.12

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Bug Fixes

• node 12.20.0 compatibility (b8c51f4)

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