Bump github.com/IBM/platform-services-go-sdk from 0.28.3 to 0.28.4

Bumps [github.com/IBM/platform-services-go-sdk](https://github.com/IBM/platform-services-go-sdk) from 0.28.3 to 0.28.4.
- [Release notes](https://github.com/IBM/platform-services-go-sdk/releases)
- [Changelog](https://github.com/IBM/platform-services-go-sdk/blob/main/CHANGELOG.md)
- [Commits](IBM/platform-services-go-sdk@v0.28.3...v0.28.4)

---
updated-dependencies:
- dependency-name: github.com/IBM/platform-services-go-sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -7,7 +7,7 @@ replace sigs.k8s.io/cluster-api => sigs.k8s.io/cluster-api v1.2.2
 require (
 	github.com/IBM-Cloud/power-go-client v1.2.1
 	github.com/IBM/go-sdk-core/v5 v5.10.2
-	github.com/IBM/platform-services-go-sdk v0.28.3
+	github.com/IBM/platform-services-go-sdk v0.28.4
 	github.com/IBM/vpc-go-sdk v0.24.0
 	github.com/go-logr/logr v1.2.0
 	github.com/golang-jwt/jwt v3.2.2+incompatible

go.sum

@@ -73,8 +73,8 @@ github.com/IBM-Cloud/power-go-client v1.2.1/go.mod h1:Qfx0fNi+9hms+xu9Z6Euhu9088
 github.com/IBM/go-sdk-core/v5 v5.9.5/go.mod h1:YlOwV9LeuclmT/qi/LAK2AsobbAP42veV0j68/rlZsE=
 github.com/IBM/go-sdk-core/v5 v5.10.2 h1:bfqhYNwwpJ3zJQSYpF3umhmRIKaa762itvJkTAWCCLU=
 github.com/IBM/go-sdk-core/v5 v5.10.2/go.mod h1:WZPFasUzsKab/2mzt29xPcfruSk5js2ywAPwW4VJjdI=
-github.com/IBM/platform-services-go-sdk v0.28.3 h1:Os6MLVVsheUFnl+7k/mYm8KhiPZxuIG3vaPxDPWjTgo=
-github.com/IBM/platform-services-go-sdk v0.28.3/go.mod h1:jy0Ahvj5Gkkua3Gd7t22bo0GfmHRQaPZcaqwfVgEY7k=
+github.com/IBM/platform-services-go-sdk v0.28.4 h1:awoWU1Zbb2NjuVDjlf2lVNUPwfq+OJEGjIoQwsd8SiA=
+github.com/IBM/platform-services-go-sdk v0.28.4/go.mod h1:jy0Ahvj5Gkkua3Gd7t22bo0GfmHRQaPZcaqwfVgEY7k=
 github.com/IBM/vpc-go-sdk v0.24.0 h1:YelLUm9eo6NchQmPmUrg6I1p2tamR1FxcvZp6aHtJzE=
 github.com/IBM/vpc-go-sdk v0.24.0/go.mod h1:YPyIfI+/qhPqlYp+I7dyx2U1GLcXgp/jzVvsZfUH4y8=
 github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=