Remove support for config objects #2336

Job	Run time
PHP 8, Solr 7 cloud	31s
PHP 8, Solr 7 server	28s
PHP 8, Solr 8 cloud	1s
PHP 8, Solr 8 server	1s
PHP 8, Solr 9 cloud	1s
PHP 8, Solr 9 server	1s
PHP 8.1, Solr 7 cloud	34s
PHP 8.1, Solr 7 server	32s
PHP 8.1, Solr 8 cloud	37s
PHP 8.1, Solr 8 server	35s
PHP 8.1, Solr 9 cloud	33s
PHP 8.1, Solr 9 server	31s
PHP 8.2, Solr 7 cloud	34s
PHP 8.2, Solr 7 server	34s
PHP 8.2, Solr 8 cloud	33s
PHP 8.2, Solr 8 server	25s
PHP 8.2, Solr 9 cloud	30s
PHP 8.2, Solr 9 server	45s
PHP 8.3, Solr 7 cloud	34s
PHP 8.3, Solr 7 server	43s
PHP 8.3, Solr 8 cloud	33s
PHP 8.3, Solr 8 server	31s
PHP 8.3, Solr 9 cloud	31s
PHP 8.3, Solr 9 server	42s
Upload coverage to codecov.io	0s
	11m 20s

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