docs: backend release notes 0.9.1

Signed-off-by: Tiago Barbosa <tbarbos@hotmail.com>

Author: t1agob

docs/release-notes/backend.md

@@ -1,5 +1,21 @@
 # Release notes for Backend plugin
 
+## > 0.9.1
+
+[GitHub release](https://github.com/PagerDuty/backstage-plugin-backend/releases/tag/0.9.1)
+
+### Summary
+
+This release introduces a few enhancements that to ensure **a)** no undesired code is executed when an exception is caught, and **b)** to avoid trying to emit headers multiple times.
+
+### Changes
+
+- fix: add missing "return" statements after errors
+
+### Dependencies
+
+- `@pagerduty/backstage-plugin-common: 0.2.1`
+
 ## > 0.9.0
 
 [GitHub release](https://github.com/PagerDuty/backstage-plugin-backend/releases/tag/0.9.0)

overrides/main.html

@@ -3,7 +3,7 @@
 {% block announce %}
 <div>
     <p>
-        <strong>🎉 New release!</strong> <span style="margin-left: 20px;"> Checkout the latest versions for Frontend(<a href="/backstage-plugin-docs/release-notes/frontend/#0150">0.15.0</a>), Backend(<a href="/backstage-plugin-docs/release-notes/backend/#090">0.9.0</a>), Common(<a href="/backstage-plugin-docs/release-notes/common/#021">0.2.1</a>), Scaffolder Actions(<a href="/backstage-plugin-docs/release-notes/scaffolder-actions/#021">0.2.1</a>) and Entity Processor(<a href="/backstage-plugin-docs/release-notes/entity-processor/#030">0.3.0</a>) </span>
+        <strong>🎉 New release!</strong> <span style="margin-left: 20px;"> Checkout the latest versions for Frontend(<a href="/backstage-plugin-docs/release-notes/frontend/#0150">0.15.0</a>), Backend(<a href="/backstage-plugin-docs/release-notes/backend/#091">0.9.1</a>), Common(<a href="/backstage-plugin-docs/release-notes/common/#021">0.2.1</a>), Scaffolder Actions(<a href="/backstage-plugin-docs/release-notes/scaffolder-actions/#021">0.2.1</a>) and Entity Processor(<a href="/backstage-plugin-docs/release-notes/entity-processor/#030">0.3.0</a>) </span>
     </p>
 </div>
 {% endblock %}