Update workflow references to version 0.3.0

Author: ybiquitous

.github/workflows/testing.yml

@@ -8,12 +8,12 @@ on:
 
 jobs:
   lint:
-    uses: stylelint/.github/.github/workflows/lint.yml@34f1c0ac91f245ee4ee5ce725bb844328c17ccf5 # main
+    uses: stylelint/.github/.github/workflows/lint.yml@34f1c0ac91f245ee4ee5ce725bb844328c17ccf5 # 0.3.0
     permissions:
       contents: read
 
   test:
-    uses: stylelint/.github/.github/workflows/test.yml@34f1c0ac91f245ee4ee5ce725bb844328c17ccf5 # main
+    uses: stylelint/.github/.github/workflows/test.yml@34f1c0ac91f245ee4ee5ce725bb844328c17ccf5 # 0.3.0
     with:
       os: '["ubuntu-latest", "windows-latest", "macos-latest"]'
       node-version: '["20", "22", "24"]'