Update swagger client and models to service-broker v1.140.0 (#346)

* Bump github.com/IBM/go-sdk-core/v5 from 5.15.1 to 5.15.3

Bumps [github.com/IBM/go-sdk-core/v5](https://github.com/IBM/go-sdk-core) from 5.15.1 to 5.15.3.
- [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@v5.15.1...v5.15.3)

---
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]>

* Fix golangci-lint action v4 requirement

Signed-off-by: Yussuf Shaikh <[email protected]>

* Update golangci-lint version and skip cache

Signed-off-by: Yussuf Shaikh <[email protected]>

* Add branch to dependabot (#338)

* Add branch to dependabot

* Fix build

* Generated Swagger client from service-broker commit 1db48bf5f665abf4e91c66d019aa231b913db3d9

---------

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

.github/workflows/go.yml

@@ -15,11 +15,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: '1.20'
-
       - name: Set up Go
         uses: actions/setup-go@v5
         with: