Update actions/download-artifact action to v5

Author: renovate[bot]

.github/workflows/build.yml

@@ -58,7 +58,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v4
     - name: Download coverage reports
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
     - name: Install ReportGenerator tool
       run: dotnet tool install -g dotnet-reportgenerator-globaltool
     - name: Prepare coverage reports
@@ -86,7 +86,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Download build'
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: 'ubuntu-latest'
       - name: 'Add NuGet source'
@@ -104,7 +104,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Download build'
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: 'ubuntu-latest'
       - name: 'Upload NuGet package and symbols'