Issue #3463409 by mkalkbrenner: Parallel indexing using concurrent dr… #2465

Job	Run time
Generate Solr jump-start config-sets	1m 2s
Drupal 10.2, Solr 3, PHP 8.2	5m 57s
Drupal 11.0, Solr 4, PHP 8.3	7m 5s
Drupal 10.3, Solr 3, PHP 8.2	5m 46s
Drupal 10.2, Solr 4, PHP 8.2	6m 15s
Drupal 11.0, Solr 5, PHP 8.3	7m 28s
Drupal 10.2, Solr 5, PHP 8.2	6m 33s
Drupal 11.0, Solr 6, PHP 8.3	7m 34s
Drupal 10.2, Solr 6, PHP 8.2	6m 31s
Drupal 11.0, Solr 7, PHP 8.3	7m 19s
Drupal 10.2, Solr 7, PHP 8.2	6m 35s
Drupal 11.0, Solr 8, PHP 8.3	7m 11s
Drupal 11.0, Solr 9, PHP 8.3	7m 42s
Drupal 10.2, Solr 8, PHP 8.2	6m 34s
Drupal 10.2, Solr 9, PHP 8.2	6m 25s
Drupal 10.3, Solr 4, PHP 8.2	6m 32s
Drupal 10.3, Solr 5, PHP 8.2	6m 32s
Drupal 10.3, Solr 6, PHP 8.2	6m 37s
Drupal 10.3, Solr 7, PHP 8.2	6m 34s
Drupal 10.3, Solr 8, PHP 8.2	6m 31s
Drupal 10.3, Solr 9, PHP 8.2	6m 32s
Drupal 11.0, Solr 9, PHP 8.3	12s
Drupal 10.3, Solr 9, PHP 8.3	21s
Push updated Solr jump-start config-sets	0s
	2h 15m 48s

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