Release: 11.5.0 (#99653)

* Update changelog

* Update version to 11.5.0

* adjust version of plugin-configs

* baldm0mma/update changelog content

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Sergej-Vlasov <sergej.s.vlasov@gmail.com>
Co-authored-by: jev forsberg <jev.forsberg@grafana.com>

e2e/test-plugins/grafana-test-datasource/package.json

@@ -11,7 +11,7 @@
   "author": "Grafana",
   "license": "Apache-2.0",
   "devDependencies": {
-    "@grafana/plugin-configs": "11.5.0-pre",
+    "@grafana/plugin-configs": "11.5.0",
     "@types/lodash": "4.17.7",
     "@types/node": "22.10.2",
     "@types/prismjs": "1.26.4",