CHANGELOG: add entry for patch 1511

Author: dannywillems

CHANGELOG.md

@@ -56,6 +56,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#1500](https://github.com/o1-labs/mina-rust/pull/1500))
 - **Dependencies**: move all dependencies to the workspace Cargo.toml
   ([#1513](https://github.com/o1-labs/mina-rust/pull/1513))
+- **Website/CI**: run most commands from the page node management in CI after
+  moving them into scripts imported on the page
+  ([#1511](https://github.com/o1-labs/mina-rust/pull/1511))
 
 ## v0.17.0