ci: set vstest connection timeout

Author: egil

.github/workflows/verification.yml

@@ -21,6 +21,10 @@ concurrency:
   group: verification-${{ github.ref }}-1
   cancel-in-progress: true
 
+env:
+  VSTEST_CONNECTION_TIMEOUT: 180
+  DOTNET_NOLOGO: "true"
+
 jobs:
   verify-bunit:
     name: 👌 Verify bUnit
@@ -112,4 +116,4 @@ jobs:
       - name: 📄 Building docs
         run: |
           dotnet tool update -g docfx --version 2.67.0
-          docfx docs/site/docfx.json
+          docfx docs/site/docfx.json