chore: use latest speakeasy generator

Author: Amzani

.github/workflows/sdk_generation.yaml

@@ -24,6 +24,7 @@ jobs:
       force: ${{ github.event.inputs.force }}
       mode: pr
       set_version: ${{ github.event.inputs.set_version }}
+      speakeasy_version: latest
     secrets:
       github_access_token: ${{ secrets.GITHUB_TOKEN }}
       nuget_api_key: ${{ secrets.NUGET_API_KEY }}