System unavailable: Dynamic azure test machines appear to lack ant

- Please put the system name in the title of this issue.

Agents are dynamic, like this one: test-linux-x64-1cc460

- Link to any log file showing the problem:

https://ci.adoptium.net/job/build_sign_sbom_libraries/77/console

- Please describe the issue:

Dynamically provisioned Azure agents that match this label appear to lack Ant in their template.

```
ubuntu x86-64 x64 ci.agent.dynamic sw.os.linux hw.arch.x86 ubuntu2204
```

Since test machines should have Ant for test setup, please modify the template to include ant.

Thank you.

Start with the linked CI console log and locate the dynamic Azure agent template matching the ubuntu x86-64 label. The work is complete when newly provisioned test machines of this type provide Ant for test setup.

Written by the indexing model from the issue text.