Fix "implicit nulls" deprecation warnings for PHP 8.4 (#328)

Co-authored-by: Miguel Rosales Sueiro <[email protected]>

Merge pull request #327 from IanSimpson/patch-4

Allow update of rize/uri-template to v0.4

Merge pull request #325 from IanSimpson/patch-3

Fix ConversationsEndpoint publishDraft function

Merge pull request #318 from gldrenthe89/master

Add missing properties and valid events to Webhook class

Merge pull request #317 from wotta/add-missing-embed-threads-option-f…

…or-conversation-filters

feat(conversations): Added "missing" functionality to get truncated threads

Merge pull request #289 from matt-h/embedded-threads

Support hydrating embedded threads in incoming webhooks

Merge pull request #309 from nicolas-grekas/cleanup

Update phpstan and php-cs-fixer and code cleanup

Merge pull request #304 from ryancco/update-deps

Replace ql/uri-template Dependency

Merge pull request #300 from ryanito/master

Add delete customer endpoint

Merge pull request #286 from pchemali/master

Conversation CustomField text property missing from API