build(deps): bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/check-build-system-equivalence.yaml

@@ -122,11 +122,11 @@ jobs:
         otp-version: ${{ env.erlang_version }}
         elixir-version: ${{ env.elixir_version }}
     - name: DOWNLOAD bazel-package-generic-unix.tar.xz
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: bazel-package-generic-unix-${{ env.VERSION }}.tar.xz
     - name: DOWNLOAD make-package-generic-unix.tar.xz
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: make-package-generic-unix-${{ env.VERSION }}.tar.xz
     - name: EXPAND & COMPARE

.github/workflows/perform-bazel-execution-comparison.yaml

@@ -96,7 +96,7 @@ jobs:
       run: |
         bazelisk build src/tools/execlog:parser
     - name: FETCH LOGS
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
     - name: PARSE LOGS
       run: |
         bazel/bazel-bin/src/tools/execlog/parser \