feat: STACKIT Dremio Integration

[bjarneschroeder]

Description

This PR adds STACKIT Dremio to the STACKIT SDK. It contains:

• the most recent generated SDK code
• an implementation for waiters for the upcoming TFP/CLI integration
• an example on how to order a new Dremio instance with a user using the SDK

Checklist

• Issue was linked above
• No generated code was adjusted manually (check comments in file header)
• Changelogs
  • Changelog in the root directory was adjusted (see here)
  • Changelog(s) of the service(s) were adjusted (see e.g. here)
• VERSION file(s) of the service(s) were adjusted
  - [ ] Code format was applied: make fmt
• Examples were added / adjusted (see examples/ directory)
• Unit tests got implemented or updated
• Unit tests are passing: make test (will be checked by CI)
• No linter issues: make lint (will be checked by CI)

[cgoetz-inovex]

please also add services/dremio/NOTICE.txt

with content:

STACKIT Dremio SDK for Go
Copyright 2026 Schwarz IT KG

[cgoetz-inovex]

Thank your for your contribution!
First round of review is done. I'll trigger a 2nd review after the current comments are resolved.

[bjarneschroeder]

please also add services/dremio/NOTICE.txt

with content:

STACKIT Dremio SDK for Go
Copyright 2026 Schwarz IT KG

I've added the file.