Update acj/freebsd-firecracker-action action to v0.4.0 (#13649)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[acj/freebsd-firecracker-action](https://redirect.github.com/acj/freebsd-firecracker-action)
| action | minor | `v0.3.0` -> `v0.4.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>acj/freebsd-firecracker-action
(acj/freebsd-firecracker-action)</summary>

###
[`v0.4.0`](https://redirect.github.com/acj/freebsd-firecracker-action/releases/tag/v0.4.0)

[Compare
Source](https://redirect.github.com/acj/freebsd-firecracker-action/compare/v0.3.0...v0.4.0)

[Firecracker
1.12.0](https://redirect.github.com/firecracker-microvm/firecracker/releases/tag/v1.12.0)
[FreeBSD 14.3-STABLE](https://www.freebsd.org/releases/14.3R/relnotes/)

Bug fixes:

- Wait for Firecracker VM to exit before returning control to the
calling workflow

Changes:

-   Upgrade CI workflow to Ubuntu 24.04

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on Monday" (UTC),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/astral-sh/uv).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MC4xNi4wIiwidXBkYXRlZEluVmVyIjoiNDAuMTYuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiaW50ZXJuYWwiXX0=-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -660,7 +660,7 @@ jobs:
           cross build --target x86_64-unknown-freebsd
 
       - name: Test in Firecracker VM
-        uses: acj/freebsd-firecracker-action@4d93174d9eea32cd2b2650f964af69f8c72eaff2 # v0.3.0
+        uses: acj/freebsd-firecracker-action@49738581fe238ad84ae7dd26f69f3960252f6994 # v0.4.0
         with:
           verbose: false
           checkout: false