Resolve "bind: Address already in use" when debugging within devcontainer

[Andrew-Dupuis]

When using VSCode Devcontainers as a development and debugging environment, there is currently an issue with running Gadgetron on the default port due to an address binding collision. To reproduce, start the devcontainer via "F1->Reopen in container", then press F5 to build and start the gadgetron:

06-07 14:07:19.999 DEBUG [gadgetron_paths.cpp:117] Executable path: "/opt/conda/envs/gadgetron/bin/gadgetron"
06-07 14:07:19.999 DEBUG [gadgetron_paths.cpp:123] Default Gadgetron home: "/opt/conda/envs/gadgetron"
06-07 14:07:19.999 WARNING [initialization.cpp:38] Environment variable 'OMP_WAIT_POLICY' not set to 'PASSIVE'.
06-07 14:07:19.999 WARNING [initialization.cpp:39] Gadgetron may experience serious performance issues under heavy load (multiple simultaneous reconstructions, etc.)
06-07 14:07:19.999 INFO [main.cpp:90] Gadgetron 4.4.7 [a0318d1349dce1b9799cb9f6b4486c6cfc5e0c7f]
06-07 14:07:20.000 DEBUG [storage.cpp:68] Found storage server: /opt/conda/envs/gadgetron/bin/mrd-storage-server
06-07 14:07:20.000 INFO [storage.cpp:69] Starting storage server on port 9112
06-07 14:07:20.001 INFO [storage.cpp:28] Verifying connectivity to storage server...
{"level":"info","time":"2023-06-07T14:07:20.098Z","message":"Listening on port 9112"}
{"level":"info","requestId":"e1eb6eaf-2206-4122-affd-b503fec7b3e4","status":200,"method":"GET","path":"/healthcheck","query":"","latencyMs":0.441,"time":"2023-06-07T14:07:20.202Z","message":"request completed"}
06-07 14:07:20.202 INFO [storage.cpp:33] Received successful response from storage server.
06-07 14:07:20.202 INFO [main.cpp:99] Running on port 9002
06-07 14:07:20.202 INFO [Server.cpp:25] Gadgetron home directory: "/opt/conda/envs/gadgetron"
06-07 14:07:20.202 INFO [Server.cpp:26] Gadgetron working directory: "/tmp/gadgetron/"
06-07 14:07:20.203 ERROR [main.cpp:136] bind: Address already in use [system:98 at /opt/conda/envs/gadgetron/include/boost/asio/detail/reactive_socket_service.hpp:161 in function 'bind']