Add e2e tests to verify hybrid architecture

[chetan-rns]

Is your task related to a problem? Please describe.

v0.9.0 introduced the support for hybrid architecture: running both the application controller and the principal on the same control-plane cluster without any conflicts. But we don't have any e2e tests to correctly verify this behaviour.

Describe the solution you'd like

1. Include e2e tests to verify the hybrid architecture
2. Principal should run with destination based mapping and label selector enabled
3. Enable the app controller
4. Test if the app controller reconciles the traditional app ignoring the agent app.
5. Test if the principal syncs the agent managed app ignoring the traditional app.

Describe alternatives you've considered

Additional context