Add support for Rollbar v3

[danielmorell]

Description of the change

This PR includes the work of @philsturgeon and @tobigumo.

Any more work required to make this library compatible with rollbar/rollbar v3 will also be rolled up into this PR.

Type of change

• [x] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Maintenance
• [x] New release

Related issues

• Fix #128
• Fix #122
• Fix #120

Checklists

Development

• [x] Lint rules pass locally
• [x] The code changed/added as part of this pull request has been covered with tests
• [x] All tests related to the changed code pass in development

Code review

• [ ] This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• [ ] "Ready for review" label attached to the PR and reviewers assigned
• [ ] Issue from task tracker has a link to this pull request
• [ ] Changes have been reviewed by at least one other engineer

[danielmorell]

The install step is now working. However, we have a test failure that I did not see locally. I will need to dig into that.

[danielmorell]

I have been able to reproduce the error locally.

PHPUnit 9.5.19 #StandWithUkraine

..F                                                                 3 / 3 (100%)

Time: 00:00.080, Memory: 22.00 MB

There was 1 failure:

1) Tests\Feature\LoggingTest::test_log_call_invokes_rollbar_check_ignore
Rollbar check_ignore handler not invoked, suggesting an issue integrating Rollbar into Laravel.
Failed asserting that file "/.tmp.txt" exists.

/var/www/rollbar/rollbar-test-app/tests/Feature/LoggingTest.php:14

FAILURES!
Tests: 3, Assertions: 3, Failures: 1.

Now, I just need to dig into the cause.