chore: simplify CI matrix (#708) #2660

Job	Run time
P:8.1, S:6.4.*, D:mysql, PU:9 (dama) (schema)	42s
P:8.1, S:6.4.*, D:mongo, PU:9 (schema)	2m 47s
P:8.2, S:6.4.*, D:mysql, PU:9 (dama) (schema)	41s
P:8.2, S:6.4.*, D:mongo, PU:9 (schema)	34s
P:8.2, S:7.1.*, D:mysql, PU:9 (dama) (schema)	35s
Lint Documentation	5s
Code Coverage	1m 45s
P:8.2, S:7.1.*, D:mongo, PU:9 (schema)	47s
Static Analysis	33s
P:8.3, S:6.4.*, D:mysql, PU:9 (dama) (schema)	36s
P:8.3, S:6.4.*, D:mongo, PU:9 (schema)	31s
P:8.3, S:7.1.*, D:mysql, PU:9 (dama) (schema)	36s
Sync meta files	8s
P:8.3, S:7.1.*, D:mongo, PU:9 (schema)	31s
P:8.3, S:*, D:none, PU:9 (schema)	30s
P:8.3, S:*, D:mysql\|mongo, PU:9 (dama) (schema)	1m 7s
P:8.3, S:*, D:pgsql\|mongo, PU:9 (dama) (schema)	1m 1s
P:8.3, S:*, D:pgsql, PU:9 (schema)	1m 28s
P:8.3, S:*, D:sqlite, PU:9 (schema)	46s
P:8.3, S:*, D:sqlite, PU:9 (lowest) (schema)	44s
P:8.3, S:*, D:mysql, PU:9 (lowest) (dama) (schema)	36s
P:8.3, S:*, D:mysql, PU:9 (dama) (migrate)	43s
composer-validate / Validate composer.json	5s
P:8.3, S:*, D:mysql\|mongo, PU:10 (dama) (schema)	4m 44s
P:8.3, S:*, D:mysql\|mongo, PU:11 (dama) (schema)	1m 4s
P:8.3, S:*, D:mysql\|mongo, PU:11 (dama) (schema) (phpunit extension)	56s
P:8.3, S:*, D:mysql\|mongo, PU:11 (schema) (phpunit extension)	4m 50s
Run php-cs-fixer	20s
	29m 45s

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