Docs: update example dependencies to latest Angular version 13 release

[brandonroberts]

Other information:

I would be willing to submit a PR for the docs ❤️

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[ ] No

[jordanpowell88]

I'm happy to take this

[timdeschryver]

Thanks @jordanpowell88 , feel free to take this.
Though maybe it would be better to wait on #3184.

[jordanpowell88]

Sounds great. I'll wait on #3184 first

[patelvimal]

@timdeschryver Does this issue still relevant? I guess required changes has been done in #3184.

[timdeschryver]

@patelvimal yes it's still required. #3184 has updated the main repo with its libraries to v13, but we also have to update our examples on ngrx.io, which can be found here.

[patelvimal]

@timdeschryver thanks for the update. I can take this one and raise the PR.

[timdeschryver]

Please check with @jordanpowell88 first.

[patelvimal]

@jordanpowell88 I can see you have already made the required changes in your commit.
Is there anything pending on that? Let me know if I can contribute in some way.

[jordanpowell88]

Hey fellas, I was waiting for Nx to get updated, let me work on finishing this up. I'll reach out if I need any help @patelvimal !

[jordanpowell88]

Can you assign to me @timdeschryver?

[timdeschryver]

Sure, thanks @jordanpowell88