Update CI triggers (astral-sh#823)

.github/workflows/clippy.yml

@@ -1,6 +1,10 @@
 name: Clippy
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   build:

.github/workflows/python-format.yml

@@ -1,6 +1,10 @@
 name: Python format
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   format:

.github/workflows/python-lint.yml

@@ -1,6 +1,10 @@
 name: Python lint
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   lint:

.github/workflows/rustfmt.yml

@@ -1,6 +1,10 @@
 name: Rustfmt
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   build:

.github/workflows/spelling.yml

@@ -1,6 +1,10 @@
 name: Spelling
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   typos:

.github/workflows/tests.yml

@@ -1,6 +1,10 @@
 name: Tests
 
-on: [push, pull_request]
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+  pull_request:
 
 jobs:
   test-latest-linux: