Updated Dockerfile

The Nightly Workflow Upgrader began timing out after `gh-aw` released
v0.48.2 — the `gh aw upgrade` process (download, codemods, compile all
workflows) now takes ~11–15 min, exceeding the 15-minute step limit.

Run history confirms the drift:
| Run | Date | Duration | Result |
|-----|------|----------|--------|
| #3 | Feb 19 | ~5 min | ✅ (no upgrade needed) |
| #4 | Feb 20 | 11m 31s | ✅ (upgrading to v0.48.x) |
| #5 | Feb 21 | >15 min | ❌ timeout |

## Changes

- **`nightly-workflow-compiler.md`** — increase `timeout-minutes` from
`15` to `25` (source of truth)
- **`nightly-workflow-compiler.lock.yml`** — mirror the same change on
the "Execute GitHub Copilot CLI" step so the running workflow actually
picks it up without waiting for recompilation

<!-- START COPILOT ORIGINAL PROMPT -->



<details>

<summary>Original prompt</summary>

> 
> ----
> 
> *This section details on the original issue you should resolve*
> 
> <issue_title>[agentics] Nightly Workflow Upgrader failed</issue_title>
> <issue_description>### Workflow Failure
> 
> **Workflow:** [Nightly Workflow Upgrader](#)  
> **Branch:** main  
> **Run URL:**
https://github.com/github/gh-aw-mcpg/actions/runs/22250628311
> 
> 
> 
> ### Action Required
> 
> **Option 1: Assign this issue to agent using agentic-workflows**
> 
> Assign this issue to the `agentic-workflows` agent to automatically
debug and fix the workflow failure.
> 
> **Option 2: Manually invoke the agent**
> 
> Debug this workflow failure using the `agentic-workflows` agent:
> 
> ```
> /agent agentic-workflows debug the agentic workflow
nightly-workflow-compiler failure in
https://github.com/github/gh-aw-mcpg/actions/runs/22250628311
> ```
> 
> 
> > Generated from [Nightly Workflow
Upgrader](https://github.com/github/gh-aw-mcpg/actions/runs/22250628311)
> > - [x] expires <!-- gh-aw-expires: 2026-02-28T05:06:56.189Z --> on
Feb 28, 2026, 5:06 AM UTC
> 
> <!-- gh-aw-agentic-workflow: Nightly Workflow Upgrader, run:
https://github.com/github/gh-aw-mcpg/actions/runs/22250628311
--></issue_description>
> 
> ## Comments on the Issue (you are @copilot in this section)
> 
> <comments>
> </comments>
> 


</details>


> **Custom agent used: agentic-workflows**
> GitHub Agentic Workflows (gh-aw) - Create, debug, and upgrade
AI-powered workflows with intelligent prompt routing



<!-- START COPILOT CODING AGENT SUFFIX -->

- Fixes #1225

<!-- START COPILOT CODING AGENT TIPS -->
---

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