Bump github.com/IBM/go-sdk-core/v5 from 5.20.1 to 5.21.0 (kubernetes-sigs#2446)

Bumps [github.com/IBM/go-sdk-core/v5](https://github.com/IBM/go-sdk-core) from 5.20.1 to 5.21.0.
- [Release notes](https://github.com/IBM/go-sdk-core/releases)
- [Changelog](https://github.com/IBM/go-sdk-core/blob/main/CHANGELOG.md)
- [Commits](IBM/go-sdk-core@v5.20.1...v5.21.0)

---
updated-dependencies:
- dependency-name: github.com/IBM/go-sdk-core/v5
  dependency-version: 5.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -11,7 +11,7 @@ replace (
 
 require (
 	github.com/IBM-Cloud/power-go-client v1.12.0
-	github.com/IBM/go-sdk-core/v5 v5.20.1
+	github.com/IBM/go-sdk-core/v5 v5.21.0
 	github.com/IBM/ibm-cos-sdk-go v1.12.2
 	github.com/IBM/networking-go-sdk v0.51.10
 	github.com/IBM/platform-services-go-sdk v0.85.1

go.sum

@@ -10,8 +10,8 @@ github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c h1:pxW6RcqyfI9/k
 github.com/BurntSushi/toml v1.4.1-0.20240526193622-a339e1f7089c/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/IBM-Cloud/power-go-client v1.12.0 h1:tF9Mq5GLYHebpzQT6IYB89lIxEST1E9teuchjxSAaw0=
 github.com/IBM-Cloud/power-go-client v1.12.0/go.mod h1:SpTK1ttW8bfMNUVQS8qOEuWn2KOkzaCLyzfze8MG1JE=
-github.com/IBM/go-sdk-core/v5 v5.20.1 h1:dzeyifh1kfRLw8VfAIIS5okZYuqLTqplPZP/Kcsgdlo=
-github.com/IBM/go-sdk-core/v5 v5.20.1/go.mod h1:Q3BYO6iDA2zweQPDGbNTtqft5tDcEpm6RTuqMlPcvbw=
+github.com/IBM/go-sdk-core/v5 v5.21.0 h1:DUnYhvC4SoC8T84rx5omnhY3+xcQg/Whyoa3mDPIMkk=
+github.com/IBM/go-sdk-core/v5 v5.21.0/go.mod h1:Q3BYO6iDA2zweQPDGbNTtqft5tDcEpm6RTuqMlPcvbw=
 github.com/IBM/ibm-cos-sdk-go v1.12.2 h1:71A4tDl8u6BZ548h71ecEe7fw5bBA7ECTVqYmeSQWQA=
 github.com/IBM/ibm-cos-sdk-go v1.12.2/go.mod h1:ODYcmrmdpjo5hVguq9RbD6xmC8xb1XZMG7NefUbJNcc=
 github.com/IBM/networking-go-sdk v0.51.10 h1:7IKKU2U/kxd2xWDCuapkRdo91WwRT+5aRl5vwyiXKV8=