[DR] dr tools should not require a terminal to run

```
fatal: [an-a01dr01]: FAILED! => {"changed": true, "cmd": "if ! anvil-manage-dr --server an-test-deploy1 --protect --protocol short-throw --dr-host $(hostname) --Yes; then\n echo \"Unable to add protection to server an-test-deploy1\"\n exit 1\nfi\n", "delta": "0:00:03.225522", "end": "2025-05-28 07:45:32.976177", "msg": "non-zero return code", "rc": 1, "start": "2025-05-28 07:45:29.750655", "stderr": "TERM not set at /usr/sbin/anvil-manage-dr line 107.", "stderr_lines": ["TERM not set at /usr/sbin/anvil-manage-dr line 107."], "stdout": "Unable to add protection to server an-test-deploy1", "stdout_lines": ["Unable to add protection to server an-test-deploy1"]}
```

https://ci.kronosnet.org/job/anvil/job/anvil-build-functional-testing/16362/anvil-build-all-voting-functional-testing=anvil-bm/console