chore(calls): bump @lotusguild/element-call-embedded to 0.25.0-lotus.8

Picks up the fork change that shows the SFU token service's refusal reason
("Can't join this call — This voice channel is full.") instead of the generic
OPEN_ID_ERROR page. Verified headless with a routed 403 on /sfu/get.
(lotus.6/7 were tagged but failed CI lint; lotus.8 is the published one.)

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

package-lock.json

@@ -80,7 +80,7 @@
         "workbox-precaching": "7.4.1"
       },
       "devDependencies": {
-        "@lotusguild/element-call-embedded": "0.25.0-lotus.4",
+        "@lotusguild/element-call-embedded": "0.25.0-lotus.8",
         "@playwright/test": "1.63.0",
         "@rollup/plugin-inject": "5.0.5",
         "@rollup/plugin-wasm": "6.2.2",
@@ -2681,9 +2681,9 @@
       "integrity": "sha512-dfLbk+PwWvFzSxwk3n5ySL0hfBog779o8h68wK/7/APo/7cgyWp5jcXockbxdk5kFRkbeXWm4Fbi9FrdN381sA=="
     },
     "node_modules/@lotusguild/element-call-embedded": {
-      "version": "0.25.0-lotus.4",
-      "resolved": "https://code.lotusguild.org/api/packages/LotusGuild/npm/%40lotusguild%2Felement-call-embedded/-/0.25.0-lotus.4/element-call-embedded-0.25.0-lotus.4.tgz",
-      "integrity": "sha512-ySrG/6R/g+lmHmhHNhPqf9RYbkWeVLzSZcMD9c4TwU9GDbYzwKaKWbwET7RrmN6Sg065+/UkpQ7zDTkB8/lUew==",
+      "version": "0.25.0-lotus.8",
+      "resolved": "https://code.lotusguild.org/api/packages/LotusGuild/npm/%40lotusguild%2Felement-call-embedded/-/0.25.0-lotus.8/element-call-embedded-0.25.0-lotus.8.tgz",
+      "integrity": "sha512-nd1AeeyGto7ni/l/0am22lLQTt7rVEE3Pl0amQlVe1DRQcqfTUl/dq/iIOwv2L6vDu5gxh8Mu5dc455AG9nYzQ==",
       "dev": true
     },
     "node_modules/@matrix-org/matrix-sdk-crypto-wasm": {