Replacing deprecated methods in avro with supported methods

[prakashkillada-fc]

Checklist

This change is tested against SBA connector project and looks fine.

• [ ] updated CHANGELOG (the "unreleased" section)
• [ ] tests

[creese]

Please update the CHANGELOG.

[codecov[bot]]

Codecov Report

Merging #264 into master will increase coverage by 0.39%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #264      +/-   ##
==========================================
+ Coverage   80.87%   81.26%   +0.39%     
==========================================
  Files          41       41              
  Lines        2562     2562              
  Branches      149      149              
==========================================
+ Hits         2072     2082      +10     
+ Misses        341      331      -10     
  Partials      149      149              

Impacted Files	Coverage Δ
src/jackdaw/serdes/avro.clj	89.07% <100.00%> (ø)
src/jackdaw/serdes/edn2.clj	90.90% <0.00%> (+45.45%)	:arrow_up:

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[prakashkillada-fc]

Please update the CHANGELOG.

@creese Added the changelog. Please check.