Update metcalfc/changelog-generator action to v4.5.0 #223

Job	Run time
Platform test (7.4)	3m 9s
Platform test (8.0)	2m 46s
Platform test (8.1)	2m 59s
Platform test (8.2)	3m 4s
Platform test (8.3)	3m 0s
Platform test (8.4)	2m 58s
Platform test (8.1, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 44s
Platform test (8.2, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 42s
Platform test (8.3, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 29s
Platform test (8.4, doctrine/orm:^3.0 doctrine/dbal:^4.0 carbonphp/carbon-doctrine-types:^3 gedmo...	2m 33s
	28m 24s

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