[Submodule] Update src/sonic-utilities

[liuh-80]

Updating sonic-utilities sub module with the following commits

    b00b870 [build] stop vstest in the Azure pipeline 
    2c56e92 [GCU] Marking fields under BGP_PEER_RANGE, BGP_MONITORS as create-only
    6289987 Fix sonic-installer failure due to missing import 
    45e6ac1 [show] add support for hwstatus in show muxcable status
    93384ed Try get port operational speed from STATE DB
    483fc6e [techsupport] Added a lock to avoid running techsupport in parallel
    398da58 Validation check correction while adding a member to PortChannel
    a8a7edb [generate_dump] exclude mft and mlx folders from /etc
    1cf1d03 Fix UT failed cause by change pycommon to use swsscommon 

Why I did it

When change pycommon to use swsscommon UT failed in sonic-utilities, need submodule update with UT issue fix.

How I did it

How to verify it

Which release branch to backport (provide reason below if selected)

Description for the changelog

    [build] stop vstest in the Azure pipeline 
    [GCU] Marking fields under BGP_PEER_RANGE, BGP_MONITORS as create-only
    Fix sonic-installer failure due to missing import 
    [show] add support for hwstatus in show muxcable status
    Try get port operational speed from STATE DB
    [techsupport] Added a lock to avoid running techsupport in parallel
    Validation check correction while adding a member to PortChannel
    [generate_dump] exclude mft and mlx folders from /etc
    Fix UT failed cause by change pycommon to use swsscommon 

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