Deployment link to Agent Engine logs is broken due to punctuation.

#### Environment details

- OS type and version: Agent Engine
- Python version: 3.13
- pip version: N/A
- `google-cloud-aiplatform` version: `HEAD`

#### Steps to reproduce

1. Run a deploy to agent engine
2. Watch the stdout (excerpt below)
3. Attempt to click on the log link.
4. Link opens, but is no good due to trailing `.`; records not found

```
2026-01-24 14:46:23,134 - vertexai_genai.agentengines - INFO - Using agent framework: google-adk
2026-01-24 14:46:24,710 - vertexai_genai.agentengines - INFO - View progress and logs at https://console.cloud.google.com/logs/query?project=YOUR_PROJECTED&query=resource.type%3D%22aiplatform.googleapis.com%2FReasoningEngine%22%0Aresource.labels.reasoning_engine_id%3D%22AGENT_ENGINE_ID%22.
2026-01-24 14:50:18,618 - vertexai_genai.agentengines - INFO - Agent Engine updated. To use it in another session:
```

#### The Fix

Copy the URL without the trailing period, try again.

#### Root Cause

A trailing `.` in the logging statement for `View progress and logs at ` , as found after `%22`

https://github.com/googleapis/python-aiplatform/blob/0179aa5fd18260ffa9723abb16b1ec2d36571dd2/vertexai/_genai/agent_engines.py#L961-L964