Update actions/download-artifact action to v5 (#167)

Author: phnx47-bot

.github/workflows/ci.yml

@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: packages
       - name: Push to pkg.github.com
@@ -69,7 +69,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: packages
           path: packages
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: packages
       - name: Push to nuget.org