The Actions and Octokit dependencies have been bumped. Since they contain major version updates, this also constitutes a major version update for this action:
{
"@actions/core": "^1.2.4",
"@actions/github": "^4.0.0",
"@actions/io": "^1.0.2",
"@octokit/core": "^3.1.2",
"@octokit/plugin-paginate-rest": "^2.3.0",
"@octokit/plugin-rest-endpoint-methods": "^4.1.2"
}