Fix metadata generation for multisig example (#380)

15 jobs for master in 11 minutes and 21 seconds (queued for 31 seconds)
Status Job ID Name Coverage
  Check
passed #476660
linux-docker
check-std

00:01:28

passed #476661
linux-docker
check-wasm

00:01:43

 
  Workspace
passed #476662
linux-docker
build-std

00:01:48

passed #476663
linux-docker
build-wasm

00:02:20

passed #476665
linux-docker
clippy-std

00:01:20

passed #476666
linux-docker
clippy-wasm

00:01:38

passed #476667
linux-docker
fmt

00:00:28

passed #476664
linux-docker
test

00:03:03

 
  Examples
passed #476670
linux-docker
examples-clippy-std

00:01:13

passed #476671
linux-docker
examples-clippy-wasm

00:01:02

passed #476672
linux-docker
examples-contract-build

00:01:08

passed #476669
linux-docker
examples-fmt

00:00:14

passed #476673
linux-docker
examples-generate-metadata

00:02:48

passed #476668
linux-docker
examples-test

00:01:17

 
  Publish
passed #476674
linux-docker
publish-docs

00:01:24