fix: remove invalid CODEOWNERS references

Remove references to @OpenCortexIDE/maintainers team that doesn't exist.
Restore CODEOWNERS to original state from main branch.

Author: Tajudeen

.github/CODEOWNERS

@@ -1,9 +1,4 @@
 # GitHub actions required reviewers
-# NOTE: Update these with actual OpenCortexIDE team members
-.github/workflows/** @OpenCortexIDE/maintainers
-.github/workflows/_reusable-*.yml @OpenCortexIDE/maintainers
-.github/workflows/pr.yml @OpenCortexIDE/maintainers
-.github/workflows/post-merge-package.yml @OpenCortexIDE/maintainers
 .github/workflows/monaco-editor.yml @hediet @alexdima @lszomoru @joaomoreno
 .github/workflows/no-package-lock-changes.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
 .github/workflows/no-yarn-lock-changes.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
@@ -12,14 +7,9 @@
 .github/workflows/pr-linux-test.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
 .github/workflows/pr-node-modules.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
 .github/workflows/pr-win32-test.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
+.github/workflows/pr.yml @lszomoru @joaomoreno @TylerLeonhardt @rzhao271
 .github/workflows/telemetry.yml @lramos15 @lszomoru @joaomoreno
 
-# Build and release infrastructure (critical paths)
-build/** @OpenCortexIDE/maintainers
-scripts/** @OpenCortexIDE/maintainers
-.husky/** @OpenCortexIDE/maintainers
-.lintstagedrc.js @OpenCortexIDE/maintainers
-
 # VS Code API
 # Ensure the API team is aware of changes to the vscode-dts file
 # this is only about the final API, not about proposed API changes