Fix CI: remove redundant npm version step, bump to v0.6.3

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: tylergibbs1

.github/workflows/ci.yml

@@ -48,6 +48,5 @@ jobs:
             gh release create "$TAG" --title "$TAG" --generate-notes
 
             echo "Publishing stratus-sdk@$VERSION to npm"
-            npm version "$VERSION" --no-git-tag-version
             npm publish --access public
           fi

package.json

@@ -1,6 +1,6 @@
 {
   "name": "stratus-sdk",
-  "version": "0.6.2",
+  "version": "0.6.3",
   "type": "module",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",