payload: Bump maximum manifest size to 4 MiB #287

Job	Run time
build (ubuntu-latest)	2m 57s
build (windows-latest)	7m 8s
build (macos-latest)	3m 24s
Prepare workflow data	5s
Preload device images	0s
Run test for bluejay on ubuntu-latest	1m 31s
Run test for bluejay on windows-latest	1m 38s
Run test for bluejay on macos-latest	1m 21s
Run test for bramble on ubuntu-latest	1m 40s
Run test for bramble on windows-latest	1m 37s
Run test for bramble on macos-latest	1m 16s
Run test for cheetah on ubuntu-latest	1m 30s
Run test for cheetah on windows-latest	1m 25s
Run test for cheetah on macos-latest	1m 29s
Run test for ossi on ubuntu-latest	2m 38s
Run test for ossi on windows-latest	3m 19s
Run test for ossi on macos-latest	3m 8s
Run test for sunfish on ubuntu-latest	1m 43s
Run test for sunfish on windows-latest	1m 40s
Run test for sunfish on macos-latest	1m 30s
	40m 59s

Provide feedback