enable parallel-routes-and-interception deploy tests

[ztanner]

Only 1 test suite in this suite is failing and it's related to file tracing, which should be fixed in a follow-up. For now this enables deploy tests for everything else to make sure we don't regress.

This also simplifies the original test to not require stopping the server & patching a file.

[ztanner]

• #66848 👈
• canary

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[ijjk]

Tests Passed