fix(deps): update stackit sdk modules

[stackit-pipeline]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/stackitcloud/stackit-sdk-go/services/objectstorage	v1.3.1 -> v1.4.0
github.com/stackitcloud/stackit-sdk-go/services/serviceaccount	v0.11.0 -> v0.11.1

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.

[github-actions]

Merging this branch will not change overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/stackitcloud/stackit-cli/internal/cmd/object-storage/credentials/create	45.45% (ø)

---

Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/stackitcloud/stackit-cli/internal/cmd/object-storage/credentials/create/create.go	45.45% (ø)	66	30	36

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.