chore: re-enable release pipeline for master (#2561)

Author: haakonvt

.github/workflows/release-pypi-v8.yaml

@@ -1,10 +1,10 @@
 ---
 name: release
 
-# Disabled: master is dormant pending v8 merge. Re-enable when v8 lands on master.
-# Previously triggered on push to master; moved to pysdk-release-v7 for ongoing v7 maintenance.
 on:
-  workflow_dispatch:
+  push:
+    branches:
+      - master
 
 jobs:
   test_full_build_and_release: