#913: Require Maven 3.9.0 [Maven 3.6.3 is EOL] #1138

Job	Run time
Run checkstyle	27s
Run integration test with Java 11 and Maven 3.9.9	51s
Run integration test with Java 11 and Maven 4.0.0-beta-5	55s
Run integration test with Java 11 and Maven 3.9.0	57s
Run integration test with Java 11 and Maven 4.0.0-alpha-13	48s
Run integration test with Java 11 and Maven 4.0.0-rc-5	1m 9s
Run basic test with Java 14	48s
Run basic test with Java 12	45s
Run basic test with Java 13	46s
Run basic test with Java 15	47s
Run basic test with Java 11	46s
Run basic test with Java 22	45s
Run basic test with Java 20	49s
Run basic test with Java 17	52s
Run basic test with Java 23	46s
Run basic test with Java 24	48s
Run basic test with Java 25	53s
Run basic test with Java 16	40s
Run basic test with Java 19	45s
Run basic test with Java 26	47s
Run basic test with Java 21	47s
Run basic test with Java 18	47s
Run coveralls	-1s
Deploy snapshot	-1s
	17m 36s

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