build(deps): bump github.com/IBM/go-sdk-core/v5 from 5.18.2 to 5.18.3

Bumps [github.com/IBM/go-sdk-core/v5](https://github.com/IBM/go-sdk-core) from 5.18.2 to 5.18.3.
- [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@v5.18.2...v5.18.3)

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

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

go.mod

@@ -5,7 +5,7 @@ go 1.22.0
 toolchain go1.23.1
 
 require (
-	github.com/IBM/go-sdk-core/v5 v5.18.2
+	github.com/IBM/go-sdk-core/v5 v5.18.3
 	github.com/go-openapi/strfmt v0.23.0
 	github.com/onsi/ginkgo v1.16.5
 	github.com/onsi/gomega v1.36.1

go.sum

@@ -1,5 +1,5 @@
-github.com/IBM/go-sdk-core/v5 v5.18.2 h1:qsfLcLW77F2Q/fpnvKxaGx2/gkckl9UE8NUedrX69dw=
-github.com/IBM/go-sdk-core/v5 v5.18.2/go.mod h1:3ywpylZ41WhWPusqtpJZWopYlt2brebcphV7mA2JncU=
+github.com/IBM/go-sdk-core/v5 v5.18.3 h1:q6IDU3N2bHGwijK9pMnzKC5gqdaRII56NzB4ZNdSFvY=
+github.com/IBM/go-sdk-core/v5 v5.18.3/go.mod h1:5kILxqEWOrwMhoD2b7J6Xv9Z2M6YIdT/6Oy+XRSsCGQ=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=