quadlet: generate RequiresMountsFor for Type=bind volumes

This makes sure that the volume source is available before the volume is
created.

Fixes: https://github.com/containers/podman/issues/26125

Signed-off-by: Hiếu Lê <leorize+oss@disroot.org>

pkg/systemd/quadlet/quadlet.go

@@ -1115,6 +1115,9 @@ func ConvertVolume(volume *parser.UnitFile, name string, unitsInfoMap map[string
 		if ok && len(devType) != 0 {
 			if devValid {
 				podman.add("--opt", fmt.Sprintf("type=%s", devType))
+				if devType == "bind" {
+					service.Add(UnitGroup, "RequiresMountsFor", dev)
+				}
 			} else {
 				return nil, warnings, fmt.Errorf("key Type can't be used without Device")
 			}