Change sensorshow conn to use TCP socket

[cyw233]

What I did

Change the DB connection in scripts/sensorshow to use TCP socket.

How I did it

How to verify it

Run the commands that invoke sensorshow (e.g. show platform voltage) without write permission to see if it's returning the correct output instead of the RuntimeError: Unable to connect to redis (unix-socket) - Permission denied(1): Cannot assign requested address error

Previous command output (if the output of a command-line utility has changed)

RuntimeError: Unable to connect to redis (unix-socket) - Permission denied(1): Cannot assign requested address

New command output (if the output of a command-line utility has changed)

user@SONiC-DUT-sup00:~$ show platform voltage  
         Sensor    Voltage    High TH    Low TH    Crit High TH    Crit Low TH    Warning          Timestamp
---------------  ---------  ---------  --------  --------------  -------------  ---------  -----------------
FC0_HOTSWAP_VIN   55275 mV      58860     49140           59400          48600      False  20260310 03:04:31
FC2_HOTSWAP_VIN   55350 mV      58860     49140           59400          48600      False  20260310 03:04:31
FC4_HOTSWAP_VIN   55300 mV      58860     49140           59400          48600      False  20260310 03:04:31
FC5_HOTSWAP_VIN   55275 mV      58860     49140           59400          48600      False  20260310 03:04:31
FC6_HOTSWAP_VIN   55250 mV      58860     49140           59400          48600      False  20260310 03:04:31
     MB_VP54P0V   55350 mV      59343     48806           59913          48298      False  20260310 03:04:31

[cyw233]

Original PR: sonic-net/sonic-utilities#4343