Update sonic-utilities submodule pointer to include the following:
* 88ffb16 [config]config reload should generate sysinfo if missing ([sonic-net#2778](sonic-net/sonic-utilities#2778))
* 7443b9e [sonic-package-manager] support extension with multiple YANG modules ([sonic-net#2752](sonic-net/sonic-utilities#2752))
* 522c3a9 [sonic-package-manager] add support for multiple CLI plugin files ([sonic-net#2753](sonic-net/sonic-utilities#2753))
* b38fcfd [show][muxcable] fix  RC ([sonic-net#2812](sonic-net/sonic-utilities#2812))
* 7e24463 [chassis]: remote cli commands infra for sonic chassis ([sonic-net#2701](sonic-net/sonic-utilities#2701))
* bee593e [DPB]Fixing typo in config breakout output ([sonic-net#2802](sonic-net/sonic-utilities#2802))
* ada603c [config]Support multi-asic  Golden Config override ([sonic-net#2738](sonic-net/sonic-utilities#2738))
* 88a7daa [show][barefoot] replace shell=True ([sonic-net#2699](sonic-net/sonic-utilities#2699))
* 5e99edb [sonic_package_manager] replace shell=True ([sonic-net#2726](sonic-net/sonic-utilities#2726))
* b547bb4 [acl-loader] Only add default deny rule when table is L3 or L3V6 ([sonic-net#2796](sonic-net/sonic-utilities#2796))

Signed-off-by: dprital <[email protected]>

… Install

* In 17/05/2023, SONiC updates the format of CLI section in the manifest.json.
* The implementation was updated in 202311 or later branches.
* However, the PR sonic-net#2753 reported there is a error occur when the CLI migration.
* The root cause is occurred while a CLI field (show/config/clear) is empty ('').
* This PR modifies the parser of the cli_plugins field in the manifest.py.