Update pythonpublish.yml

.github/workflows/pythonpublish.yml

@@ -6,7 +6,7 @@ name: Upload Python Package
 on:
   push:
     branches:
-      - master
+      - build
 
 jobs:
   build:
@@ -19,6 +19,7 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: 3.7
+        architecture: x86
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip