Add author to unity and qodo entries

Partner entries surface their author on listing pages; unity (added in
#5595, modeled on qodo) and qodo itself were both missing the field, so
they render without partner attribution unlike the other 202 entries.

No-Verification-Needed: registry metadata only; claude plugin validate passes

Co-Authored-By: Claude Mythos 5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -2825,6 +2825,9 @@
       "name": "qodo",
       "displayName": "Qodo",
       "description": "Qodo Skills provides a curated library of reusable AI agent capabilities that extend Claude's functionality for software development workflows. Each skill is designed to integrate seamlessly into your development process, enabling tasks like code quality checks, automated testing, security scanning, and compliance validation. Skills operate across your entire SDLC—from IDE to CI/CD—ensuring consistent standards and catching issues early.",
+      "author": {
+        "name": "Qodo"
+      },
       "category": "development",
       "source": {
         "source": "url",
@@ -3721,6 +3724,9 @@
       "name": "unity",
       "displayName": "Unity",
       "description": "Unity's official plugin for Claude Code, with curated skills for game development, monetization, and performance optimization.",
+      "author": {
+        "name": "Unity Technologies"
+      },
       "category": "development",
       "source": {
         "source": "url",