add blog on how to use starlark in Woodpecker CI

Signed-off-by: prashant-gurung899 <prasantgrg777@gmail.com>

Author: prashant-gurung899

src/assets/woodpeckerCI/woodpeckerCI.md

@@ -0,0 +1,9 @@
+---
+title: Starlark in woodpecker CI
+authorName: Prashant Gurung
+authorAvatar: https://avatars.githubusercontent.com/u/53248463?v=4
+authorLink: https://github.com/prashant-gurung899
+createdAt: July 3, 2025
+tags: CI/CD
+banner: https://raw.githubusercontent.com/JankariTech/blog/master/src/imgs/fallback_banner.png
+---