HDDS-15808. Replace json-simple with Jackson in httpfsgateway #50762

Job	Run time
CI / build-info	16s
CI / license	-1s
CI / basic	-1s
CI / javadoc	-1s
CI / build	-1s
CI / repro	0s
CI / dependency	-1s
CI / generate-config-doc	-1s
CI / compile	0s
CI / kubernetes	0s
CI / acceptance	0s
CI / update-ozone-site-config-doc	0s
CI / integration	0s
CI / coverage	0s
	10s

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