workflows: add document header

bk2204 · bk2204 · commit cf4ba45f9251 · 2025-11-21T18:47:53.000Z
This is a best practice and yamllint warns about omitting it.
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
@@ -1,3 +1,4 @@
+---
 name: Lint
 on:
   push:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
@@ -1,3 +1,4 @@
+---
 name: Release
 
 on:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -1,3 +1,4 @@
+---
 on: [push, pull_request]
 name: Test
 jobs:
