Bump jackson-databind from 2.6.4 to 2.12.7.1 in /samples/client/petstore/java/vertx#55
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dependabot[bot] wants to merge 1 commit intomasterfrom dependabot/maven/samples/client/petstore/java/vertx/com.fasterxml.jackson.core-jackson-databind-2.12.7.1
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