Bump php-mock/php-mock-phpunit from 2.8.0 to 2.9.0 #93

Job	Run time
bookworm / build	18m 56s
bullseye / build	19m 31s
buster / build	18m 45s
bookworm / test (pi, run_installation_tests.sh)	2m 51s
bookworm / test (pi, run_installation_tests2.sh)	2m 51s
bookworm / test (pi, run_installation_tests3.sh)	3m 29s
bookworm / test (hans, run_installation_tests.sh)	1m 2s
bookworm / test (hans, run_installation_tests2.sh)	1m 5s
bookworm / test (hans, run_installation_tests3.sh)	56s
buster / test (pi, run_installation_tests.sh)	2m 58s
buster / test (pi, run_installation_tests2.sh)	3m 6s
buster / test (pi, run_installation_tests3.sh)	3m 58s
buster / test (hans, run_installation_tests.sh)	57s
buster / test (hans, run_installation_tests2.sh)	1m 0s
buster / test (hans, run_installation_tests3.sh)	1m 7s
bullseye / test (pi, run_installation_tests.sh)	3m 7s
bullseye / test (pi, run_installation_tests2.sh)	3m 18s
bullseye / test (pi, run_installation_tests3.sh)	4m 4s
bullseye / test (hans, run_installation_tests.sh)	1m 7s
bullseye / test (hans, run_installation_tests2.sh)	1m 8s
bullseye / test (hans, run_installation_tests3.sh)	58s
bookworm / cleanup	0s
buster / cleanup	0s
bullseye / cleanup	0s
	1h 36m 14s

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