chore(deps): update actions/download-artifact action to v8

Author: renovate[bot]

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

@@ -210,7 +210,7 @@ jobs:
             sbuild cache --cache /tmp/build_cache.sdb init
 
       - 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

@@ -324,7 +324,7 @@ jobs:
             sbuild cache --cache /tmp/build_cache.sdb init
 
       - name: Download build status artifacts
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           pattern: build-status-*
           path: /tmp/build-statuses