Update dependencies

[bradyclifford]

Update node dependencies to latest.

It is odd that these are actually included in the repo. Perhaps in the future a build can be added to this repo so the dependencies themselves don't have to be added to the repo.

The updated action/core dependency includes critical updates.
https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

If action/core is not updated to the version mentioned in the article above in the near future, this action will fail to function.

[bradyclifford]

I have tested this change with a real PagerDuty account. Also tested it with the test routing key, see runner: https://github.com/bradyclifford/pagerduty-change-events-action/actions/runs/5272710041

     - name: Create a change event
        uses: bradyclifford/pagerduty-change-events-action@patch-1
        with:
          integration-key: 737ea619db564d41bd9824063e1f6b08
          custom-event: Test custom event with dependency updates

[bradyclifford]

This might be a hard PR to review with all of the changes. All I did was run npm install locally and update all of the changes in node_modules.

If you don't trust this PR, I suggest the owner of this repo runs npm install themselves and merges those changes in.