ENH: Avoid triggering GitHub Actions workflow on both upstream and fork

Author: jcfr

.github/workflows/build-test-package.yml

@@ -1,6 +1,14 @@
 name: Build, test, package
 
-on: [push,pull_request]
+on:
+  push:
+    branches:
+      - master
+    tags:
+       - '*'
+  pull_request:
+    branches:
+      - master
 
 jobs:
   cxx-build-workflow:

.github/workflows/clang-format-linter.yml

@@ -1,6 +1,14 @@
 name: clang-format linter
 
-on: [push,pull_request]
+on:
+  push:
+    branches:
+      - master
+    tags:
+       - '*'
+  pull_request:
+    branches:
+      - master
 
 jobs:
   lint:

.github/workflows/wasm.yml

@@ -1,6 +1,14 @@
 name: WebAssembly
 
-on: [push,pull_request]
+on:
+  push:
+    branches:
+      - master
+    tags:
+       - '*'
+  pull_request:
+    branches:
+      - master
 
 jobs:
   build-wasm: