dep: Update actions/setup-dotnet action to v5

Author: renovate[bot]

.github/workflows/CI.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 6.0.x
 
@@ -36,7 +36,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 6.0.x
 
@@ -65,7 +65,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 6.0.x