feat(controller): support receiving `MultipartFile`s #8615

Job	Run time
Build Java and TypeScript for other tasks	2m 53s
Check style	2m 0s
Test Java	3m 50s
ITs (ubuntu-latest, group-1)	5m 43s
Test TypeScript	2m 33s
ITs (ubuntu-latest, group-2)	5m 2s
Gradle tests (ubuntu-latest)	3m 45s
ITs (ubuntu-latest, some)	4m 33s
Gradle tests (windows-latest)	10m 19s
Tests Summary	3s
	40m 41s

Provide feedback