Add include field to the manifest (#1842) #8194

Job	Run time
scarb-metadata compatibility check	43s
check-rust	4m 15s
check-website	10s
build test linux x86-64	4m 13s
doc tests	3m 8s
build test windows x86-64	8m 41s
test linux x86-64 1/8	20m 9s
test linux x86-64 2/8	26m 9s
test linux x86-64 3/8	20m 22s
test linux x86-64 4/8	18m 23s
test linux x86-64 5/8	16m 43s
test linux x86-64 6/8	13m 23s
test linux x86-64 7/8	13m 7s
test linux x86-64 8/8	14m 29s
test windows x86-64 1/8	19m 3s
test windows x86-64 2/8	23m 51s
test windows x86-64 3/8	20m 24s
test windows x86-64 4/8	16m 20s
test windows x86-64 5/8	17m 35s
test windows x86-64 6/8	12m 40s
test windows x86-64 7/8	12m 36s
test windows x86-64 8/8	13m 13s
	4h 59m 37s

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