Merge pull request rollbar#596 from rollbar/next/4.0/main

4.0.0-beta

Merge pull request rollbar#576 from gap-referencement/stephpy-patch-1

Catch error during serialization

Merge pull request rollbar#568 from Chris53897/feature/fix-phpunit-tests

tests: fix running tests on local machine (mac m1)

Merge pull request rollbar#567 from pcoutinho/fix-php81-serializable-…

…deprecation

fix: try using __serialize when obj implements \Serializable

Merge pull request rollbar#562 from rollbar/fixed_134

Fixed Person ID not cast to string

Merge pull request rollbar#560 from stephpy/hotfix/tracechain

Tracechain must implements ContentInterface to be part of Body.

Merge pull request rollbar#558 from danielmorell/php8.1-compat

Add PHP 8.1 Compatibility