build(deps): bump docker/setup-qemu-action from 3 to 4 (#584)

Bumps [docker/setup-qemu-action](https://github.com/docker/setup-qemu-action) from 3 to 4.
- [Release notes](https://github.com/docker/setup-qemu-action/releases)
- [Commits](docker/setup-qemu-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/setup-qemu-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -278,7 +278,7 @@ jobs:
         uses: actions/setup-python@v6
         with:
           python-version: "3.x"
-      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-qemu-action@v4
       - run: pip install nox
       - run: nox -s test-crossenv -- ${{ matrix.platform.arch }}
 
@@ -295,7 +295,7 @@ jobs:
         # need cross HEAD for https://github.com/cross-rs/cross/issues/1645
         # will probably be ok to use released cross from 0.3
         run: cargo install cross --git https://github.com/cross-rs/cross
-      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-qemu-action@v4
       - run: pip install nox
       - run: nox -s test-cross