workflow dispatch matrix-setup

.github/workflows/python.yml

@@ -61,7 +61,7 @@ jobs:
   matrix-setup:
     # Building all the wheels is expensive, so we only run this job when we push (to main or release tags),
     # or if the PR has the 'build wheels' label for explicit testing of wheels.
-    if: github.event_name == 'push' || contains( github.event.pull_request.labels.*.name, '🛞 build wheels')
+    if: github.event_name == 'push' || contains( github.event.pull_request.labels.*.name, '🛞 build wheels') || github.event_name == 'workflow_dispatch'
     runs-on: ubuntu-latest
 
     outputs: