Merge pull request #4 from rexlabsio/feat/php-8

fix: setLogger return type must match interface

Added composer.lock to gitignore

 remove redundant log message

Update CHANGELOG for 2.6.0 release

add helper method to get response data as array

Update dependency rexlabs/array-object

Fix bug where headers merge instead of overwrite (add test)

more base uri functions / tests

add clear instance function for testing

add overrides, add subclass instance handling