chore(deps): Bump actions/download-artifact from 5 to 6

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/.benchmark.yml

@@ -58,7 +58,7 @@ jobs:
     steps:
       -
         name: Download binaries
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: /tmp/binaries
           pattern: ${{ inputs.artifact_key }}-*

.github/workflows/ci.yml

@@ -136,7 +136,7 @@ jobs:
     steps:
       -
         name: Download binaries
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: /tmp/buildkit-binaries
           pattern: ${{ env.BUILDKIT_ARTIFACT_KEY }}-*
@@ -223,14 +223,14 @@ jobs:
     steps:
       -
         name: Download results
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: /tmp/bench-results
           pattern: bench-results-*
           merge-multiple: true
       -
         name: Download candidates
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: /tmp/bench-results
           pattern: "*-candidates"
@@ -309,7 +309,7 @@ jobs:
           path: bin/gh-pages
       -
         name: Download report
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: report
           path: /tmp/bench-report

.github/workflows/regen.yml

@@ -127,7 +127,7 @@ jobs:
         uses: actions/checkout@v5
       -
         name: Download reports
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           path: ./website/public/result
           pattern: report-*