Bump diagram-js from 15.2.0 to 15.2.3

Bumps [diagram-js](https://github.com/bpmn-io/diagram-js) from 15.2.0 to 15.2.3.
- [Release notes](https://github.com/bpmn-io/diagram-js/releases)
- [Changelog](https://github.com/bpmn-io/diagram-js/blob/develop/CHANGELOG.md)
- [Commits](bpmn-io/diagram-js@v15.2.0...v15.2.3)

---
updated-dependencies:
- dependency-name: diagram-js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -35,7 +35,7 @@
     "bpmn-js": "^18.0.0",
     "bpmn-js-properties-panel": "^5.26.0",
     "camunda-bpmn-moddle": "^7.0.1",
-    "diagram-js": "^15.2.0",
+    "diagram-js": "^15.2.3",
     "jquery": "^3.7.1",
     "min-dash": "^4.2.2"
   }