Bump composer.json version to 0.0.2

Composer's VCS driver cross-checks the tag against the version field
in composer.json and skips tags that disagree, so this must match
the v0.0.2 tag for it to resolve.

composer.json

@@ -2,7 +2,7 @@
   "name": "boboko/core",
   "description": "Core module — authentication and shared panel behaviour",
   "type": "library",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "autoload": {
     "psr-4": {
       "Modules\\Core\\": "src/"