feat(controller): support receiving `MultipartFile`s #8610

Job	Run time
Build Java and TypeScript for other tasks	2m 39s
Test Java	3m 9s
Check style	26s
Gradle tests (ubuntu-latest)	3m 9s
ITs (ubuntu-latest, group-1)	3m 9s
Gradle tests (windows-latest)	3m 9s
ITs (ubuntu-latest, group-2)	3m 8s
Test TypeScript	2m 36s
ITs (ubuntu-latest, some)	3m 8s
Tests Summary	1s
	24m 34s

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