chore(deps-dev): bump apollo-server-koa from 3.6.7 to 3.12.1 #6603

Job	Run time
lint (18.x)	3m 42s
test-core (18.x)	3m 18s
test-graphql (18.x)	2m 50s
test-integration (ubuntu-latest, 16.x)	4m 15s
test-orm (18.x)	2m 49s
test-integration (ubuntu-latest, 18.x)	4m 2s
test-platform (18.x)	2m 50s
test-integration (ubuntu-latest, 19.x)	3m 47s
test-specs (18.x)	2m 45s
test-integration (macos-latest, 18.x)	18m 9s
test-formio (18.x)	3m 12s
test-integration (windows-latest, 18.x)	12m 11s
test-security (18.x)	2m 52s
test-third-parties (18.x)	2m 46s
deploy-packages	0s
publish-docs	0s
	1h 9m 28s

Provide feedback