chore(main): release 1.9.1 (#50)

🤖 I have created a release *beep* *boop*
---


##
[1.9.1](v1.9.0...v1.9.1)
(2025-06-02)


### Bug Fixes

* Prevent close on a nil channel
([#49](#49))
([efc49c6](efc49c6))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

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.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.9.0"
+  ".": "1.9.1"
 }

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 All notable changes to the project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [1.9.1](https://github.com/launchdarkly/eventsource/compare/v1.9.0...v1.9.1) (2025-06-02)
+
+
+### Bug Fixes
+
+* Prevent close on a nil channel ([#49](https://github.com/launchdarkly/eventsource/issues/49)) ([efc49c6](https://github.com/launchdarkly/eventsource/commit/efc49c6f67340ffb38fe56341623977749ab75a8))
+
 ## [1.9.0](https://github.com/launchdarkly/eventsource/compare/v1.8.0...v1.9.0) (2025-04-21)