TBR: Bump extension version.

Change-Id: Ia2f368ad2959054fc0bebc8d1befaba25792f6a1
diff --git a/extension/manifest.json b/extension/manifest.json
index 56b0121..9de0269 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -1,6 +1,6 @@
 {
   "name": "Vanadium Extension",
-  "version": "0.1.14",
+  "version": "0.1.15",
   "description": "Access and create Vanadium services from JavaScript.",
   "manifest_version": 2,
   "icons": {