GH-40573: [GLib][Ruby][CSV] Add support for customizing timestamp parsers

[kou]

Rationale for this change

ISO8601 timestamp values in CSV can be parsed by default but non-ISO8601 timestamp values can't.

What changes are included in this PR?

• Add garrow_csv_read_options_set_timestamp_parsers()
• Add garrow_csv_read_options_get_timestamp_parsers()
• Add garrow_csv_read_options_add_timestamp_parser()
• Add Arrow::TimestampParser.try_convert for implicit cast

Are these changes tested?

Yes.

Are there any user-facing changes?

Yes.

• GitHub Issue: [GLib] Add timestamp_parsers property to GArrowCSVReadOptions #40573

[github-actions]

⚠️ GitHub issue #40573 has been automatically assigned in GitHub to PR creator.

[kou]

+1

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 7 benchmarking runs that have been run so far on merge-commit 7d3f7b3.

There was 1 benchmark result with an error:

• Commit Run on ursa-i9-9960x at 2024-03-18 08:46:51Z
  • tpch (R) with engine=arrow, format=native, language=R, memory_map=False, query_id=TPCH-12, scale_factor=10

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 5 possible false positives for unstable benchmarks that are known to sometimes produce them.