fix(deps): update dependency @octokit/action to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@octokit/action	^7.0.0 → ^8.0.0

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Release Notes

octokit/action.js (@​octokit/action)

v8.0.4

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Bug Fixes

• deps: update dependency undici to v7 (#​662) (48feb05)

v8.0.3

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Bug Fixes

• deps: update octokit monorepo (major) (#​710) (385e049)

v8.0.2

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Bug Fixes

• deps: update dependency @​octokit/plugin-rest-endpoint-methods to v16 (#​703) (25f537f)

v8.0.1

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Bug Fixes

• deps: update octokit monorepo (major) (#​702) (76679e4)

v8.0.0

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Continuous Integration

• stop testing against NodeJS v18 (#​700) (b6a290e)

BREAKING CHANGES

• Drop support for NodeJS v18

• build: set minimal node version in build script to v20

• ci: stop testing against NodeJS v18

v7.0.2

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Bug Fixes

• deps: update octokit monorepo (major) (#​694) (82d96c1)

v7.0.1

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Bug Fixes

• deps: update Octokit dependencies to mitigate ReDos vulnerabilities [security] (#​682) (715671e)

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