chore(calls): bump @lotusguild/element-call-embedded to 0.25.0-lotus.13

Brings the plain-language "Couldn't connect to voice" dialog with a
Try again button (replaces "Failed to connect to Livekit server
(Reason: ServerUnreachable)").

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

package.json

@@ -108,7 +108,7 @@
   },
   "devDependencies": {
     "@axe-core/playwright": "4.13.0",
-    "@lotusguild/element-call-embedded": "0.25.0-lotus.12",
+    "@lotusguild/element-call-embedded": "0.25.0-lotus.13",
     "@playwright/test": "1.63.0",
     "@rollup/plugin-inject": "5.0.5",
     "@rollup/plugin-wasm": "6.2.2",