feat(amazonq): upgrade mynah-ui to 4.23.0 (#6705)

Upgrade mynah-ui library to latest version

https://github.com/aws/mynah-ui/releases/tag/v4.23.0



---

- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

packages/amazonq/.changes/next-release/Feature-cf1e3d13-1b3d-4b23-bf6b-d6d46c75565c.json

@@ -0,0 +1,4 @@
+{
+	"type": "Feature",
+	"description": "Amazon Q chat: increase chat input height to 3 lines"
+}

packages/core/package.json

@@ -510,7 +510,7 @@
         "@aws-sdk/property-provider": "<3.696.0",
         "@aws-sdk/smithy-client": "<3.696.0",
         "@aws-sdk/util-arn-parser": "<3.696.0",
-        "@aws/mynah-ui": "^4.22.1",
+        "@aws/mynah-ui": "^4.23.0",
         "@gerhobbelt/gitignore-parser": "^0.2.0-9",
         "@iarna/toml": "^2.2.5",
         "@smithy/middleware-retry": "^3.0.0",