Add release notes

Author: marcelovilla

RELEASE.md

@@ -9,6 +9,18 @@ This file is copied to nebari-dev/nebari-docs using a GitHub Action. -->
 
 ---
 
+## Release 2025.6.1 - June 06, 2025
+
+### What's Changed
+- Enable resource monitoring for cirun runners by @aktech in https://github.com/nebari-dev/nebari/pull/3047
+- Add filesystem scan in Trivy GHA workflow to scan Python dependencies by @marcelovilla in https://github.com/nebari-dev/nebari/pull/3045
+- Pin click to avoid incompatibility issues with Typer by @marcelovilla in https://github.com/nebari-dev/nebari/pull/3051
+- improve node taint regex by @Adam-D-Lewis in https://github.com/nebari-dev/nebari/pull/3027
+- Change JupyterLab default windowing mode to defer by @marcelovilla in https://github.com/nebari-dev/nebari/pull/3055
+- Upgrade JupyterHub Helm Chart to use 5.3.0 by @marcelovilla in https://github.com/nebari-dev/nebari/pull/3052
+
+**Full Changelog**: https://github.com/nebari-dev/nebari/compare/2025.4.2...2025.6.1
+
 ## Release 2025.4.2 - April 25, 2025
 
 > NOTE: You may notice messages like groups: cannot find name for group ID <number> when using the terminal. These warnings are harmless and do not affect system functionality or permissions. We're aware of the issue and it will be resolved in the next version.