Bump actions/download-artifact action to v7 (#175)

Author: phnx47-bot

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           name: packages
       - name: Push to pkg.github.com
@@ -74,7 +74,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Download artifacts
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           name: packages
           path: packages
@@ -90,7 +90,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           name: packages
       - name: NuGet Login