Update metcalfc/changelog-generator action to v4.5.0 #228

Job	Run time
Platform test (7.4)	3m 10s
Platform test (8.0)	2m 55s
Platform test (8.1)	3m 34s
Platform test (8.2)	3m 1s
Platform test (8.3)	2m 38s
Platform test (8.4)	3m 5s
Platform test (8.1, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 41s
Platform test (8.2, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 31s
Platform test (8.3, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 48s
Platform test (8.4, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 36s
	28m 59s

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