aider: Remove push and pull_request triggers, add workflow_dispatch trigger to make the GitHub action only run when manually initiated.

# Context:
USER: can you stop this action from running on pushes/merges and make it so that it only runs when manually initiated?
ASSISTANT: Sure, to make the GitHub action only run when manually initiated, we need to modify the `.github/workflows/windows-tests.yml` file. We will remove the `push` and `pull_request` triggers and add a `workflow_dispatch` trigger.

Here is the change:

```yaml
.github/workflows/windows-tests.yml
<<<<<<< ORIGINAL
name: Windows Tests

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
=======
name: Windows Tests

on:
  workflow_dispatch:
>>>>>>> UPDATED
```

This change will make the workflow only run when manually triggered from the GitHub Actions UI.

.github/workflows/windows-tests.yml

@@ -1,12 +1,7 @@
 name: Windows Tests
 
 on:
-  push:
+  workflow_dispatch:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
 
 jobs:
   build: