[FEATURE] Enable DBR 15.4 LTS support

[boggavarapu]

Is your feature request related to a problem? Please describe. Enable DBR 15.4 LTS support

Cloud Information

• [X ] AWS
• [ ] Azure
• [ ] GCP
• [ ] Other

Describe the solution you'd like when using workflows unable to spin up a DBR 15.4 LTS resources

[asingamaneni]

161 solved this