ci(deps): update docker/build-push-action action to v4.2.1 (#384)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[docker/build-push-action](https://togithub.com/docker/build-push-action)
| action | minor | `v4.1.1` -> `v4.2.1` |

---

### Release Notes

<details>
<summary>docker/build-push-action (docker/build-push-action)</summary>

###
[`v4.2.1`](https://togithub.com/docker/build-push-action/releases/tag/v4.2.1)

[Compare
Source](https://togithub.com/docker/build-push-action/compare/v4.2.0...v4.2.1)

> **Note**
>
> Buildx v0.10 enables support for a minimal [SLSA
Provenance](https://slsa.dev/provenance/) attestation, which requires
support for
[OCI-compliant](https://togithub.com/opencontainers/image-spec)
multi-platform images. This may introduce issues with registry and
runtime support (e.g. [Google Cloud Run and AWS
Lambda](https://togithub.com/docker/buildx/issues/1533)). You can
optionally disable the default provenance attestation functionality
using `provenance: false`.

- warn if docker config can't be parsed by
[@&#8203;crazy-max](https://togithub.com/crazy-max) in
[docker/build-push-action#957

**Full Changelog**:
docker/build-push-action@v4.2.0...v4.2.1

###
[`v4.2.0`](https://togithub.com/docker/build-push-action/releases/tag/v4.2.0)

[Compare
Source](https://togithub.com/docker/build-push-action/compare/v4.1.1...v4.2.0)

> **Note**
>
> Buildx v0.10 enables support for a minimal [SLSA
Provenance](https://slsa.dev/provenance/) attestation, which requires
support for
[OCI-compliant](https://togithub.com/opencontainers/image-spec)
multi-platform images. This may introduce issues with registry and
runtime support (e.g. [Google Cloud Run and AWS
Lambda](https://togithub.com/docker/buildx/issues/1533)). You can
optionally disable the default provenance attestation functionality
using `provenance: false`.

- display proxy configuration by
[@&#8203;crazy-max](https://togithub.com/crazy-max) in
[docker/build-push-action#872
- chore(deps): Bump
[@&#8203;docker/actions-toolkit](https://togithub.com/docker/actions-toolkit)
from 0.6.0 to 0.8.0 in
[docker/build-push-action#930
- chore(deps): Bump word-wrap from 1.2.3 to 1.2.5 in
[docker/build-push-action#925
- chore(deps): Bump semver from 6.3.0 to 6.3.1 in
[docker/build-push-action#902

**Full Changelog**:
docker/build-push-action@v4.1.1...v4.2.0

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

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

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/Mogyuchi/gh-test).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi44My4wIiwidXBkYXRlZEluVmVyIjoiMzYuODMuMCIsInRhcmdldEJyYW5jaCI6Im1haW4ifQ==-->

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

.github/workflows/build.yml

@@ -129,7 +129,7 @@ jobs:
             type=ref,event=branch
             type=sha
       - name: Build and push Docker image
-        uses: docker/build-push-action@2eb1c1961a95fc15694676618e422e8ba1d63825 # v4.1.1
+        uses: docker/build-push-action@0a97817b6ade9f46837855d676c4cca3a2471fc9 # v4.2.1
         with:
           context: .
           file: .github/workflows/build/Dockerfile