added pulok saha as author (#585)

Signed-off-by: Pulok Saha <puloksaha@appscode.com>

Author: PulokSaha0706

data/authors/pulok-saha.json

@@ -0,0 +1,10 @@
+{
+  "name": "Pulok Saha",
+  "designation": "Software Engineer",
+  "company": "AppsCode Inc.",
+  "biography": "Pulok Saha is a Software Engineer at AppsCode Inc., where he has been contributing to the KubeStash project since 2025. He is passionate about Golang and Kubernetes, with expertise in developing backup, restore, and database migration solutions for Kubernetes workloads.",
+  "profile": "/assets/images/authors/pulok-saha.jpg",
+  "email": "puloksaha@appscode.com",
+  "github": "https://github.com/PulokSaha0706",
+  "linkedin": "https://www.linkedin.com/in/pulok-saha-23b765212/"
+}