smartcontract: fix go version mismatch in TestContractInitAndCompile

Needs to updated dependencies inside the test for go1.18 and higher to
match with interop module.

Close #3152

Signed-off-by: Ekaterina Pavlova <ekt@morphbits.io>

cli/smartcontract/smart_contract.go

@@ -374,6 +374,9 @@ func initSmartContract(ctx *cli.Context) error {
 	}
 
 	gm := []byte("module " + contractName + `
+
+go 1.19
+
 require (
 	github.com/nspcc-dev/neo-go/pkg/interop ` + ver + `
 )`)