Update Rust crate indoc to v2.0.6 (#16585)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [indoc](https://redirect.github.com/dtolnay/indoc) |
workspace.dependencies | patch | `2.0.5` -> `2.0.6` |

---

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

---

### Release Notes

<details>
<summary>dtolnay/indoc (indoc)</summary>

###
[`v2.0.6`](https://redirect.github.com/dtolnay/indoc/releases/tag/2.0.6)

[Compare
Source](https://redirect.github.com/dtolnay/indoc/compare/2.0.5...2.0.6)

-   Documentation improvements

</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/ruff).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4xODUuNCIsInVwZGF0ZWRJblZlciI6IjM5LjE4NS40IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJpbnRlcm5hbCJdfQ==-->

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

Cargo.lock

@@ -1387,9 +1387,9 @@ dependencies = [
 
 [[package]]
 name = "indoc"
-version = "2.0.5"
+version = "2.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
+checksum = "f4c7245a08504955605670dbf141fceab975f15ca21570696aebe9d2e71576bd"
 
 [[package]]
 name = "inotify"