[Backport 5.5.x] Upgrade cody web experimental package to 0.2.5 (#63856)

This PR upgrades the cody web experimental package to 0.2.5, in the new
version we fixed
- Telemetry problem with init extension-related events (we don't
send install extension events anymore)
- Most recent updates on LLM availability for enterprise instances 
 
## Test plan
- CI is green
- Manual check on basic Cody Web functionality (highly recommended) <br>
Backport e6bd85e from #63839

Co-authored-by: Vova Kulikov <[email protected]>

Author: sourcegraph-release-bot

package.json

@@ -333,7 +333,7 @@
     "bloomfilter": "^0.0.18",
     "buffer": "^6.0.3",
     "classnames": "^2.2.6",
-    "cody-web-experimental": "^0.2.4",
+    "cody-web-experimental": "^0.2.5",
     "comlink": "^4.3.0",
     "copy-to-clipboard": "^3.3.1",
     "core-js": "^3.8.2",