try self-hosted windows

.gitea/workflows/build.yaml

@@ -1,10 +1,10 @@
 # .gitea/workflows/build.yaml
-name: Gitea Actions Demo
+name: Automated Unity Build
 run-name: ${{ github.actor }} is testing out Gitea Actions
 on: [push]
 jobs:
   Explore-Gitea-Actions:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, windows]
     steps:
       - run: echo "The job was automatically triggered by a ${{ github.event_name }} event."
       - run: echo "This job is now running on a ${{ runner.os }} server hosted by Gitea!"