Make compatible with TYPO3 v13, drop v11 compatibility #79

Job	Run time
Code quality checks (single PHP version) (8.1, normalize)	21s
Functional tests (^12.4, 8.1, lowest)	28s
Code quality checks (PHP version matrix) (8.1, cs:check)	15s
Code quality checks (single PHP version) (8.2, normalize)	30s
Functional tests (^12.4, 8.1, highest)	33s
Code quality checks (single PHP version) (8.3, normalize)	25s
Functional tests (^12.4, 8.2, lowest)	32s
Code quality checks (PHP version matrix) (8.1, php:static)	22s
Functional tests (^12.4, 8.2, highest)	34s
Code quality checks (PHP version matrix) (8.2, cs:check)	30s
Functional tests (^12.4, 8.3, lowest)	31s
Code quality checks (PHP version matrix) (8.2, php:static)	28s
Functional tests (^12.4, 8.3, highest)	46s
Code quality checks (PHP version matrix) (8.3, cs:check)	24s
Functional tests (^13.4, 8.2, lowest)	29s
Code quality checks (PHP version matrix) (8.3, php:static)	28s
Functional tests (^13.4, 8.2, highest)	33s
Functional tests (^13.4, 8.3, lowest)	1m 47s
Functional tests (^13.4, 8.3, highest)	33s
	10m 29s

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