Check that Weth gateways are registered in the deployment test

[gvladika]

Update deployment test (used for both CI and prod) to check that L1 and L2 weth gateways are registered in respective routers.

[gzeoneth]

the weth gateway registration check should be separate, or at least after everything else is checked, so you can check for token bridge deployment before registering weth gateway before registering

[gvladika]

the weth gateway registration check should be separate, or at least after everything else is checked, so you can check for token bridge deployment before registering weth gateway before registering

Let's put it as the last check with proper message. I'm concerned that if we put it in separate test, then it might get overlooked and never executed at all.

[gzeoneth]

LGTM