[BUGFIX] many small bugfixes

[kenwade4]

DON'T forget to undo the JSON file rename before merging

Changes proposed in this pull request:

• Add pyogrio as a requirement for expect_column_values_to_be_polygon_area_between.py
• Use correct imported dialect in pytest_generate_tests func of test_expectations_cfe.py
• Update pytest_generate_tests func in test_expectation.py to not die if get_asset call fails
• Add expect_column_values_to_be_valid_arn to skip list in build_gallery.py
• Use Python 3.8 in expectation_gallery pipeline
• Before piping to tee with build_gallery.py, redirect error to stdout too
• Add support for match_like Expectations to redshift/snowflake/bigquery
• Add redshift/snowflake to suppress list on column_mean Expectation
• Update check_json_test_result func to make sure result['result']['unexpected_list'] isn't empty
• Add redshift schemas to some values_to_be_in_set Expectation tests
• Update get_dialect_regex_expression func to check for redshift another way
• Supppress mysql/bigquery tests on contrib expect_column_values_to_be_valid_scientific_notation
• Add a step to expectation_gallery pipeline that shows implemented engines
• Update run_diagnostics to log an error message if no _expectation_config is available
• Update _get_expectation_configuration_from_examples to fallback to trying any test input if None are success:True
• Update _get_execution_engine_diagnostics to not say all engines are implemented when metric_diagnostics_list is empty
• Change test title prefix from positive to negative for contrib exp not_contain_special_characters
• Update output in test_expectation_self_check
• Change how the coverage_score is calculated
• Add a prefix of Core/Contrib to exp_type in get_expectation_file_info_dict

[netlify]

✅ Deploy Preview for niobium-lead-7998 ready!

Name	Link
🔨 Latest commit	e91ad56
🔍 Latest deploy log	https://app.netlify.com/sites/niobium-lead-7998/deploys/630f5484ac187500084cf102
😎 Deploy Preview	https://deploy-preview-5881--niobium-lead-7998.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[ghost]

👇 Click on the image for a new way to code review

• Make big changes easier — review code in small groups of related files

• Know where to start — see the whole change at a glance

• Take a code tour — explore the change with an interactive tour

• Make comments and review — all fully sync’ed with github

  Try it now!

Legend

[AFineDayFor]

🙇‍♀️ merci

[AFineDayFor]

👍