chore: fix image build issues (#105) #39

Job	Run time
Build, Tag, and Push Image (examples/map-cat)	4m 15s
Build, Tag, and Push Image (examples/map-tickgen-serde)	2m 20s
Build, Tag, and Push Image (examples/mapt-event-time-filter)	2m 4s
Build, Tag, and Push Image (examples/reduce-counter)	2m 19s
Build, Tag, and Push Image (examples/sideinput)	1m 54s
Build, Tag, and Push Image (examples/sideinput/udf)	2m 39s
Build, Tag, and Push Image (examples/simple-source)	3m 28s
Build, Tag, and Push Image (examples/sink-log)	1m 58s
Build, Tag, and Push Image (examples/source-transformer-now)	3m 37s
Build, Tag, and Push Image (examples/batchmap-flatmap)	4m 18s
Build, Tag, and Push Image (examples/batchmap-cat)	5m 5s
	33m 57s

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