Bump Apache Avro to 1.9.1

[Fokko]

Apache Avro 1.9.0 brings a lot of new features:

• Deprecate Joda-Time in favor of Java8 JSR310 and setting it as default
• Remove support for Hadoop 1.x
• Move from Jackson 1.x to 2.9
• Add ZStandard Codec
• Lots of updates on the dependencies to fix CVE's
• Remove Jackson classes from public API
• Apache Avro is built by default with Java 8
• Apache Avro is compiled and tested with Java 11 to guarantee compatibility
• Apache Avro MapReduce is compiled and tested with Hadoop 3
• Apache Avro is now leaner, multiple dependencies were removed: guava, paranamer, commons-codec, and commons-logging
• and many, many more!

[codecov]

Codecov Report

Merging #40 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #40   +/-   ##
=========================================
  Coverage     19.33%   19.33%           
  Complexity      208      208           
=========================================
  Files           100      100           
  Lines          4092     4092           
  Branches        418      418           
=========================================
  Hits            791      791           
  Misses         3223     3223           
  Partials         78       78

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