fix: deletion of resources in acc tests

[Manuelvaas]

Description

Some resource identifiers are not queried correctly within the clean-up function of the ACC tests.

Checklist

• Issue was linked above
• Code format was applied: make fmt
• Examples were added / adjusted (see examples/ directory)
• Docs are up-to-date: make generate-docs (will be checked by CI)
• Unit tests got implemented or updated
• Acceptance tests got implemented or updated (see e.g. here)
• Unit tests are passing: make test (will be checked by CI)
• No linter issues: make lint (will be checked by CI)

[github-actions]

Merging this branch will not change overall coverage

Impacted Packages	Coverage Δ	🤖
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/cdn	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/git	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/iaas	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/loadbalancer	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/objectstorage	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/observability	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/rabbitmq	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/redis	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/scf	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/serviceaccount	0.00% (ø)
github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/sfs	0.00% (ø)

---

Coverage by file

Changed unit test files

• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/cdn/cdn_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/git/git_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/iaas/iaas_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/loadbalancer/loadbalancer_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/objectstorage/objectstorage_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/observability/observability_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/rabbitmq/rabbitmq_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/redis/redis_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/scf/scf_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/serviceaccount/serviceaccount_acc_test.go
• github.com/stackitcloud/terraform-provider-stackit/stackit/internal/services/sfs/sfs_acc_test.go