Update actions/setup-dotnet action to v5

Author: renovate[bot]

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
           versionSpec: '5.12.x'
       - uses: gittools/actions/gitversion/execute@v3.2.1
         id: gitversion
-      - uses: actions/setup-dotnet@v4
+      - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '9.0.x'