Add contract size limits warnings #8434

Job	Run time
doc tests	3m 46s
check-website	10s
check-rust	3m 55s
build test linux x86-64	4m 3s
scarb-metadata compatibility check	58s
build test windows x86-64	8m 2s
test prebuilt plugins linux x86-64	5m 21s
test prebuilt plugins windows x86-64	9m 0s
test prebuilt plugins macos arm64	3m 6s
test prebuilt plugins macos x86-64	6m 23s
test linux x86-64 1/4	42m 18s
test linux x86-64 2/4	46m 20s
test linux x86-64 3/4	37m 50s
test linux x86-64 4/4	31m 20s
test windows x86-64 1/4	39m 38s
test windows x86-64 2/4	41m 34s
test windows x86-64 3/4	35m 47s
test windows x86-64 4/4	28m 2s
	5h 47m 33s

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