Update the GATK base image to a newer LTS ubuntu release #3523

Job	Run time
Validate generated WDLs using womtools	13m 32s
build and push gatk docker to artifacts	23m 52s
Validate script WDLs using womtools	55s
check if the environment has privileges	1s
WDL test RUN_CNV_GERMLINE_COHORT_WDL on cromwell	29m 43s
WDL test RUN_CNV_GERMLINE_CASE_WDL on cromwell	32m 5s
WDL test RUN_CNV_SOMATIC_WDL on cromwell	28m 5s
WDL test RUN_M2_WDL on cromwell	21m 13s
WDL test RUN_CNN_WDL on cromwell	20m 13s
WDL test RUN_VCF_SITE_LEVEL_FILTERING_WDL on cromwell	16m 53s
Java 17.0.6+10 build and test cloud	15m 13s
Java 17.0.6+10 build and test integration	32m 28s
Java 17.0.6+10 build and test unit	22m 18s
Java 17.0.6+10 test on docker integration	36m 35s
Java 17.0.6+10 test on docker unit	23m 10s
Java 17.0.6+10 test on docker variantcalling	31m 21s
Java 17.0.6+10 test on docker conda	32m 52s
	6h 20m 29s

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