Update dependency @octokit/action to v5.0.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@octokit/action	5.0.2 -> 5.0.4

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Release Notes

octokit/action.js

### [`v5.0.4`](https://togithub.com/octokit/action.js/releases/tag/v5.0.4) [Compare Source](https://togithub.com/octokit/action.js/compare/v5.0.3...v5.0.4) ##### Bug Fixes - **build:** add script to fix `package.json` before publishing ([#​494](https://togithub.com/octokit/action.js/issues/494)) ([7e56c16](https://togithub.com/octokit/action.js/commit/7e56c16d77b4aadd9affb0e10642124a562df001)) ### [`v5.0.3`](https://togithub.com/octokit/action.js/releases/tag/v5.0.3) [Compare Source](https://togithub.com/octokit/action.js/compare/v5.0.2...v5.0.3) ##### Bug Fixes - **deps:** update dependency https-proxy-agent to v6 ([#​492](https://togithub.com/octokit/action.js/issues/492)) ([f48cfc5](https://togithub.com/octokit/action.js/commit/f48cfc539cc9d4cf1f9350dbb0ab50bdfac2228e))

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