Rationale for this change

There are some missing features in the Ruby implementaion for now but we can pass them by skipping some tests in our integration tests.

What changes are included in this PR?

Archery:

• Add --with-ruby to archery integration
• Add archery.integration.tester_ruby.RubyTester
• Add no_map_field_names_validate quirk for [C++] Map type ignores key/item/value field names #49415
• Show environment variables too on external command failure because Ruby tester uses environment variables not command line arguments to pass information to integration tester

Ruby:

• Add red-arrow-format-integration-test as the test driver
  • This is not included in .gem because this is only for development
• Add ruby/red-arrow-format/lib/arrow-format/integration/ as helpers of the test driver
  • This is not included in .gem because this is only for development
• Add ArrowFormat::Array#empty?
• Add ArrowFormat::RecordBatch#empty?
• Add ArrowFormat::NullArray#n_nulls
• ArrowFormat::*Array#to_a: Add support for empty case
• Fix Apache Arrow decimal <-> BigDecimal conversion
• ArrowFormat::Bitmap#each: Fix a bug that one bit is ignored
• Move dictionary ID to ArrowFormat::DictionaryType from ArrowFormat::Field
• Add support for V4 union that has validity bitmap
• Add support for no continuation token message for backward compatibility
• ArrowFormat::StreamingReader: Add support for reading schema without calling #each
• ArrowFormat::MapType: Add support for keys sorted

Are these changes tested?

Yes.

Are there any user-facing changes?

Yes.

• GitHub Issue: [CI][Integration][Ruby] Add the Ruby implementation to integration targets #49422