Chore: Remove Jakub from CODEOWNERS (#6029)

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## PR-Codex overview
This PR updates the `.github/CODEOWNERS` file by removing a code owner for the `apps/` directory.

### Detailed summary
- Removed `@jakubkrehel` as a code owner for the `apps/` directory.
- Retained `@thirdweb-dev/developer-tools` and `@thirdweb-dev/core-platform` as code owners for the `apps/` directory.
- No changes were made to the ownership of the `scripts/` directory.

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Author: gregfromstl

.github/CODEOWNERS

@@ -12,7 +12,7 @@ packages/eslint-config-thirdweb/ @thirdweb-dev/core-platform @edwardysun
 packages/tw-tsconfig/ @thirdweb-dev/core-platform @edwardysun
 
 # apps
-apps/ @thirdweb-dev/developer-tools @thirdweb-dev/core-platform @jakubkrehel
+apps/ @thirdweb-dev/developer-tools @thirdweb-dev/core-platform
 
 # .github folder + .changeset + turbo config is owned by jonas for now
 scripts/ @jnsdls @joaquim-verges