chore(deps): update actions/setup-dotnet action to v4

Author: renovate[bot]

.github/workflows/github-pages.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@c0d4ad69d8bd405d234f1c9166d383b7a4f69ed8 # tag=v2
+        uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4
 
       - name: Build
         run: dotnet build --configuration Release