chore: update repository references to privilegedescalation org

Repository transferred from cpfarhood to privilegedescalation organization.

Updated all references in:
- Configuration files (package.json, artifacthub-pkg.yml)
- Documentation (README, CONTRIBUTING, SECURITY, docs/)
- Workflow files

GitHub Actions workflows will continue to work as they use
${{ github.repository }} which auto-updates.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

package.json

@@ -4,12 +4,12 @@
   "description": "Headlamp plugin for Fairwinds Polaris audit results",
   "repository": {
     "type": "git",
-    "url": "https://github.com/cpfarhood/headlamp-polaris-plugin.git"
+    "url": "https://github.com/privilegedescalation/headlamp-polaris-plugin.git"
   },
   "bugs": {
-    "url": "https://github.com/cpfarhood/headlamp-polaris-plugin/issues"
+    "url": "https://github.com/privilegedescalation/headlamp-polaris-plugin/issues"
   },
-  "homepage": "https://github.com/cpfarhood/headlamp-polaris-plugin#readme",
+  "homepage": "https://github.com/privilegedescalation/headlamp-polaris-plugin#readme",
   "author": "cpfarhood",
   "license": "Apache-2.0",
   "scripts": {