chore(deps): bump github.com/kubernetes-csi/csi-test/v5

Bumps [github.com/kubernetes-csi/csi-test/v5](https://github.com/kubernetes-csi/csi-test) from 5.0.0 to 5.4.0.
- [Release notes](https://github.com/kubernetes-csi/csi-test/releases)
- [Commits](kubernetes-csi/csi-test@v5.0.0...v5.4.0)

---
updated-dependencies:
- dependency-name: github.com/kubernetes-csi/csi-test/v5
  dependency-version: 5.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -3,7 +3,7 @@ module github.com/upcloud-tools/upcloud-csi
 go 1.26
 
 require (
-	github.com/container-storage-interface/spec v1.9.0
+	github.com/container-storage-interface/spec v1.12.0
 	github.com/golang/protobuf v1.5.4
 	github.com/google/uuid v1.6.0
 	github.com/onsi/ginkgo/v2 v2.32.0
@@ -20,7 +20,7 @@ require (
 	k8s.io/client-go v0.35.6
 )
 
-require github.com/kubernetes-csi/csi-test/v5 v5.0.0
+require github.com/kubernetes-csi/csi-test/v5 v5.4.0
 
 require (
 	github.com/UpCloudLtd/upcloud-go-api/v8 v8.38.0
@@ -44,6 +44,7 @@ require (
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
 	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect