🐛Destination Google Sheets: Fix empty headers list

[lazebnyi]

What

https://github.com/airbytehq/alpha-beta-issues/issues/344 - Destination: Google Sheets - IndexError: list index out of range (via Sentry)

How

Ignore headers set if headers list empty

Pre-merge Checklist

Updating a connector

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• Unit & integration tests added and passing. Community members, please provide proof of success locally e.g: screenshot or copy-paste unit, integration, and acceptance test output. To run acceptance tests for a Python connector, follow instructions in the README. For java connectors run ./gradlew :airbyte-integrations:connectors:<name>:integrationTest.
• Code reviews completed
• Documentation updated
  • Connector's README.md
  • Connector's bootstrap.md. See description and examples
  • Changelog updated in docs/integrations/<source or destination>/<name>.md including changelog. See changelog example
• PR name follows PR naming conventions

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• Build is successful
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• /test connector=connectors/<name> command is passing
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[lazebnyi]

/test connector=connectors/destination-google-sheets

🕑 connectors/destination-google-sheets https://github.com/airbytehq/airbyte/actions/runs/3363800568
✅ connectors/destination-google-sheets https://github.com/airbytehq/airbyte/actions/runs/3363800568
Python tests coverage:

Name                                       Stmts   Miss  Cover
--------------------------------------------------------------
destination_google_sheets/buffer.py           28      0   100%
destination_google_sheets/__init__.py          2      0   100%
destination_google_sheets/writer.py           42      1    98%
destination_google_sheets/client.py           25      1    96%
destination_google_sheets/spreadsheet.py      47      2    96%
destination_google_sheets/helpers.py          47      4    91%
destination_google_sheets/destination.py      47      9    81%
--------------------------------------------------------------
TOTAL                                        238     17    93%

Build Passed

Test summary info:

All Passed

[bazarnov]

LGTM, please make sure we cover this case with the unit test, I think it should be covered already, but not sure.

[lazebnyi]

/publish connector=connectors/destination-google-sheets

🕑 Publishing the following connectors:
connectors/destination-google-sheets
https://github.com/airbytehq/airbyte/actions/runs/3370439352

Connector	Did it publish?	Were definitions generated?
connectors/destination-google-sheets	✅	✅

if you have connectors that successfully published but failed definition generation, follow step 4 here ▶️