Re-enable trigger to build only for new release tags

.github/workflows/build_release.yml

@@ -1,20 +1,20 @@
 name: Build and upload to PyPI
 
-# # Only build and upload when a new release tag is created
-# on:
-#   push:
-#     tags:
-#       - "v[0-9]+.[0-9]+.[0-9]+"
-#       - "v[0-9]+.[0-9]+.[0-9]+[a-z]+[0-9]+"
+# Only build and upload when a new release tag is created
+on:
+  push:
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+"
+      - "v[0-9]+.[0-9]+.[0-9]+[a-z]+[0-9]+"
 # Alternatively, build on every branch push, tag push, and pull request change
-on: [push]  #, pull_request]
+# on: [push, pull_request]
 
 jobs:
   build_wheels:
     name: Build wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
-      fail-fast: false
+      fail-fast: true
       matrix:
         os: [ubuntu-latest, macos-12, macos-14]
         toolchain:
@@ -24,7 +24,7 @@ jobs:
             macosx_deployment_target: "12.0"
           - os: macos-14
             macosx_deployment_target: "14.0"
-  
+
     steps:
       - uses: actions/checkout@v4
         with: