build(deps): bump actions/download-artifact from 7 to 8

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 7 to 8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v7...v8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build-on-change.yaml

@@ -204,7 +204,7 @@ jobs:
             -o /usr/local/bin/sbuild && chmod +x /usr/local/bin/sbuild || true
 
       - name: Download build status artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           pattern: build-status-*
           path: /tmp/build-statuses

.github/workflows/pr-build-test.yaml

@@ -230,7 +230,7 @@ jobs:
       actions: read
     steps:
       - name: Download build status artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           pattern: build-status-*
           path: /tmp/build-status

.github/workflows/release-metadata.yaml

@@ -139,7 +139,7 @@ jobs:
       contents: write
     steps:
       - name: Download all artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           path: /tmp/artifacts
           merge-multiple: true

.github/workflows/rolling-rebuilds.yaml

@@ -316,7 +316,7 @@ jobs:
             -o /usr/local/bin/sbuild && chmod +x /usr/local/bin/sbuild || true
 
       - name: Download build status artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           pattern: build-status-*
           path: /tmp/build-statuses