Fall back to TableRow representation for typed BQ writes containing a LocalDateTime field

[clairemcginty]

typed FILE_LOADS writes containing a LocalDateTime field fail with this error:

  "status": {
    "errorResult": {
      "location": "query",
      "message": "Field month has incompatible types. Configured schema: datetime; Avro file: string.",
      "reason": "invalidQuery"
    },
    "errors": [
      {
        "location": "query",
        "message": "Field month has incompatible types. Configured schema: datetime; Avro file: string.",
        "reason": "invalidQuery"
      }
    ],
    "state": "DONE"
  },

as it turns out, Beam's TableRow-to-Avro converter writes LocalDateTimes as a datetime string, which is supported by the Storage Writes API. Unfortunately, FILE_LOADS expects a micro timestamp as a Long.

[jto]

LGTM.
Hopefully this gets fixed in Beam and we can just remove the workaround.

[codecov]

Codecov Report

Attention: Patch coverage is 30.43478% with 16 lines in your changes missing coverage. Please review.

Project coverage is 61.30%. Comparing base (93a20de) to head (71db71c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...otify/scio/bigquery/syntax/SCollectionSyntax.scala	26.31%	14 Missing ⚠️
...-core/src/main/scala/com/spotify/scio/io/Tap.scala	0.00%	1 Missing ⚠️
...scala/com/spotify/scio/bigquery/BigQueryUtil.scala	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5623      +/-   ##
==========================================
- Coverage   61.33%   61.30%   -0.04%     
==========================================
  Files         314      314              
  Lines       11257    11274      +17     
  Branches      782      814      +32     
==========================================
+ Hits         6905     6912       +7     
- Misses       4352     4362      +10     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.