integration tests - update package-lock for Node v16 usage
integration tests - update package-lock for Node v16 usage

rsalmaso/wagtail,rsalmaso/wagtail,thenewguy/wagtail,zerolab/wagtail,rsalmaso/wagtail,zerolab/wagtail,rsalmaso/wagtail,wagtail/wagtail,thenewguy/wagtail,zerolab/wagtail,wagtail/wagtail,wagtail/wagtail,zerolab/wagtail,rsalmaso/wagtail,thenewguy/wagtail,zerolab/wagtail,wagtail/wagtail,thenewguy/wagtail,wagtail/wagtail,thenewguy/wagtail