Fix broken link in development index (#49192)

Fixes: #49191

Author: potiuk

devel-common/src/sphinx_exts/docs_build/dev_index_template.html.jinja2

@@ -45,7 +45,7 @@
   <h1 class="page-title">Apache Airflow Documentation</h1>
   <div class="row">
     <div class="col-md order-md-1">
-      <img src="https://github.com/apache/airflow/raw/main/airflow/www/static/pin_100.png" alt="Apache Airflow - logo" width="100" height="100">
+      <img src="https://github.com/apache/airflow/raw/main/airflow-core/src/airflow/ui/public/pin_100.png" alt="Apache Airflow - logo" width="100" height="100">
     </div>
 
     <div class="col-md">