[FLINK-7419] Shade jackson dependency in flink-avro

[FangYongs]

What is the purpose of the change

Shade jackson dependency in flink-avro to avoid incompatible versions

Brief change log

• Shade jackson in pom.xml of flink-avro project

Verifying this change

(Please pick either of the following options)

No test case

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (yes)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
• The serializers: (no)
• The runtime per-record code paths (performance sensitive): (no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)

Documentation

• Does this pull request introduce a new feature? (no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[zentol]

Had one comment, otherwise +1 to merge.

[zentol]

Please switch the pattern to ... avro.shaded.... . I would like to reserver the org.apache.flink.shaded namespaces for dependencies from flink-shaded.

[FangYongs]

@zentol Thank you for your review, I have rename the pattern, thanks

[StephanEwen]

Merging this...

[zentol]

@zjureel The PR has been merged, could you close the PR?