chore(deps): update dependency @actions/github to v4

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
@actions/github (source)	dependencies	major	^1.1.0 -> ^4.0.0

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	CVE
Medium	6.1	CVE-2022-0235
Medium	5.3	CVE-2022-25883
Low	2.6	CVE-2020-15168

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Release Notes

actions/toolkit (@​actions/github)

v4.0.0

• Add execution state information to context
• Update Octokit Dependencies with some api breaking changes
  • The full list of api changes are here
  • GitHub.plugin() no longer supports an array as first argument. Multiple args must be passed in instead.

v3.0.0

• Swap to @​octokit/core and use plugins to leverage lastest octokit apis
• Add comment field to payload context

v2.2.0

• Support GHES: Use GITHUB_API_URL and GITHUB_GRAPHQL_URL to determine baseUrl

v2.1.1

• Use import {Octokit}
• Check proxy bypass before setting proxy agent

v2.1.0

• Octokit client follows proxy settings
• Fix issue number for pull request comment events

v2.0.1

• Add "types" to package.json

v2.0.0

• Upgrade Octokit version to 4.x to include typescript types #​228

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