Update caddy:2.10.2-builder Docker digest to 0166840 (#7)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| caddy | stage | digest | `00dfa5f` → `0166840` |

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### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), 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.

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

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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #7
Co-authored-by: Renovate Bot <renovate-bot@valverde.cloud>
Co-committed-by: Renovate Bot <renovate-bot@valverde.cloud>

Dockerfile

@@ -1,4 +1,4 @@
-FROM caddy:2.10.2-builder@sha256:00dfa5f39333243282c82d73de2acfe0609cb4a7879eb96946dcdfbf3a27ff87 AS builder
+FROM caddy:2.10.2-builder@sha256:01668408cc26e2e00c9d067c30cb43b2ba14ad1f2808beda55503cb2a31f59dc AS builder
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target=/root/.cache/go-build \
     xcaddy build \