build(deps): bump github.com/gophercloud/gophercloud

Bumps [github.com/gophercloud/gophercloud](https://github.com/gophercloud/gophercloud) from 0.20.0 to 0.22.0.
- [Release notes](https://github.com/gophercloud/gophercloud/releases)
- [Changelog](https://github.com/gophercloud/gophercloud/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gophercloud/gophercloud/compare/v0.20.0...v0.22.0)

---
updated-dependencies:
- dependency-name: github.com/gophercloud/gophercloud
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.sum

@@ -305,8 +305,8 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/googleapis/gax-go/v2 v2.1.0 h1:6DWmvNpomjL1+3liNSZbVns3zsYzzCjm6pRBO1tLeso=
 github.com/googleapis/gax-go/v2 v2.1.0/go.mod h1:Q3nei7sK6ybPYH7twZdmQpAd1MKb7pfu6SK+H1/DsU0=
-github.com/gophercloud/gophercloud v0.20.0 h1:1+4jrsjVhdX5omlAo4jkmFc6ftLbuXLzgFo4i6lH+Gk=
-github.com/gophercloud/gophercloud v0.20.0/go.mod h1:wRtmUelyIIv3CSSDI47aUwbs075O6i+LY+pXsKCBsb4=
+github.com/gophercloud/gophercloud v0.22.0 h1:9lFISNLafZcecT0xUveIMt3IafexC6DIV9ek1SZdSMw=
+github.com/gophercloud/gophercloud v0.22.0/go.mod h1:wRtmUelyIIv3CSSDI47aUwbs075O6i+LY+pXsKCBsb4=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=