[#1778] Update Release Notes

* Add support for new Spring Boot auto configuration introduced in Spring Boot 2.7

RELEASE-NOTES.md

@@ -103,6 +103,7 @@ Picocli 4.7.0 introduced a `sortSynopsis = false` attribute to let the synopsis
 * [#1602] Enhancement: Fix incorrect debug output for add/removeAlias.
 * [#1603] Enhancement: Improve debug tracing information for help requests and command execution.
 * [#1629] Enhancement: Omit empty braces in standard prompt for interactive options without description. Thanks to [Andreas Deininger](https://github.com/deining) for raising this.
+* [#1778] Enhancement: Add support for new Spring Boot auto configuration introduced in Spring Boot 2.7. Thanks to [Andreas Asplund](https://github.com/aspan) for the pull request.
 * [#1680] Bugfix: ArgGroups with `multiplicity="0"` are now disallowed at construction time and no longer throw a `StackOverflowError` while parsing. Thanks to [ARNOLD Somogyi](https://github.com/zappee) for raising this.
 * [#1615][#1616] Bugfix: `getCJKAdjustedLength()` no longer miscalculates for supplementary code points. Thanks to [gwalbran](https://github.com/gwalbran) for the pull request.
 * [#1575] Bugfix: Synopsis should not cluster boolean options if `posixClusteredShortOptionsAllowed` is set to false.