Fix: convert Upstream Issue URLs to clickable link

Signed-off-by: Chetan175 <chetanahuja175@gmail.com>

Author: Chetan175

src/collections/programs/gsoc-2026/index.mdx

@@ -51,7 +51,7 @@ import playground from "./meshery-playground-alt-4.webp";
 - **Mentor(s):** <Link to="/community/members/lee-calcote">Lee Calcote</Link>, <Link to="mailto:mia.grenell2337@gmail.com">Mia Grenell</Link>
 - **Expected project size:** large (175 hours)
 - **Difficulty:** Hard
-- **Upstream Issue (URL):** https://github.com/meshery/meshery/issues/11244
+- **Upstream Issue (URL):** [https://github.com/meshery/meshery/issues/11244](https://github.com/meshery/meshery/issues/11244)
 
 #### Relationships for AWS services