ci: 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](https://github.com/actions/download-artifact/compare/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>

.github/workflows/draft.yml

@@ -176,7 +176,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build-snap]
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           pattern: snap-*
           merge-multiple: true
@@ -205,7 +205,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build-unix, build-windows, build-musl, build-snap]
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           merge-multiple: true
 
@@ -235,7 +235,7 @@ jobs:
 
       - uses: actions/checkout@v6
 
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           merge-multiple: true
 

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
   winget:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           merge-multiple: true
 
@@ -25,7 +25,7 @@ jobs:
   snapcraft:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           merge-multiple: true