test(test-tooling): fix WS identity server port publish configuration

[petermetz]

1. The hostconfig portion of the container start configuration was not
   being set up correctly which made it so that the exposed ports were not
   published on randomized ports like they were supposed to.
2. This caused the fabric-v2-2-x/run-transaction-with-ws-ids.test.ts
   test to fail because it couldn't map the container port to a host machine
   port.
3. Setting up the ws-test-server.ts class so that it does map the ports
   to the host machine solved the issue.

Signed-off-by: Peter Somogyvari [email protected]

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