Add support for byte arrays and uuid arrays in datastream to sql template.

[claudevdm]

Fix reading ByteBuffer from Avro, inserting base64 encoded strings in… to postgres BYTEA columns and cast UUID arrays.

There were multiple issues:

1. FormatDatastreamRecordToJson.java assumed the avro data could be cast as byte[], but they were in fact ByteBuffer types. This caused the entire record to fail on read/parse
2. Jackson converts byte[] => base64 encoded strings. So we need to decode these strings in the postgres insert statement
3. UUID arrays were not properly cast from strings
4. Some tests werent marked with @test and therefore not running in FormatDatastreamRecordToJsonTest

[codecov]

Codecov Report

Attention: Patch coverage is 58.33333% with 5 lines in your changes missing coverage. Please review.

Project coverage is 47.06%. Comparing base (40141f5) to head (6a61bb7).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...tream/transforms/FormatDatastreamRecordToJson.java	44.44%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2174      +/-   ##
============================================
+ Coverage     46.96%   47.06%   +0.09%     
- Complexity     4047     4375     +328     
============================================
  Files           876      876              
  Lines         52194    52204      +10     
  Branches       5502     5505       +3     
============================================
+ Hits          24515    24568      +53     
+ Misses        25921    25876      -45     
- Partials       1758     1760       +2     

Components	Coverage Δ
spanner-templates	68.91% <ø> (+<0.01%)	⬆️
spanner-import-export	65.72% <ø> (+0.01%)	⬆️
spanner-live-forward-migration	76.50% <ø> (ø)
spanner-live-reverse-replication	78.77% <ø> (ø)
spanner-bulk-migration	87.94% <ø> (ø)

Files with missing lines	Coverage Δ
...oogle/cloud/teleport/v2/utils/DatastreamToDML.java	9.09% <ø> (ø)
...oud/teleport/v2/utils/DatastreamToPostgresDML.java	58.44% <100.00%> (+1.68%)	⬆️
...tream/transforms/FormatDatastreamRecordToJson.java	57.09% <44.44%> (+14.51%)	⬆️

... and 1 file with indirect coverage changes