Tests

fix: incorrect v3 max gas amount calculation #1227

Job	Run time
no-std build	1m 32s
Unix tests (ubuntu-latest, stable)	2m 24s
WASM tests	3m 49s
Unix tests (ubuntu-latest, nightly)	1m 49s
Windows tests (stable, x86_64-pc-windows-gnu)	5m 20s
Unix tests (macos-11, stable)	4m 6s
Windows tests (stable, x86_64-pc-windows-msvc)	4m 29s
Unix tests (macos-11, nightly)	3m 53s
Windows tests (nightly, x86_64-pc-windows-gnu)	4m 38s
Windows tests (nightly, x86_64-pc-windows-msvc)	3m 25s
	35m 25s

Provide feedback