swagger.go: Fix compilation error

Error looks like:

  # github.com/containers/podman/pkg/api/handlers/swagger
  src/github.com/containers/podman/pkg/api/handlers/swagger/swagger.go:169:3: undefined: libpod.InspectVolumeData

[NO TESTS NEEDED]

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f