airbyte-ci: fix integration test log buffering

[postamar]

This PR fixes the log buffering issue in airbyte-ci that has plagued our recent source-mysql integration tests debugging efforts. What would happen is that we'd never see the ./gradlew ...:integrationTest output in a timely manner, unlike all other pipeline steps.

As it turns out, the trigger for this buffering is that this container has secrets that were mounted to it. These secrets are the credentials downloaded from GSM so they are legit secrets. There's no way around this buffering, see commentary I added in the PR.

In any case, this PR adds a workaround when developing locally: we don't mount those files as secrets, just regular files. This is fine locally because those secrets are readily available on a development machine anyway. When airbyte-ci is not running locally, it's running in a github action or something and the buffering is something we can put up with in that case. In fact, so far, this hasn't been an issue at all in that context.

This PR includes another commit which has a trivial gradle fix. Its main purpose is to exercise this change on the snowflake connector. I'll do a couple of manual runs on python connectors just to make sure I didn't break anything there.

[github-actions]

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[alafanechere]

Congrats for finding the root cause!

[github-actions]

destination-snowflake test report (commit 2a2986df14) - ❌

⏲️ Total pipeline duration: 13mn15s

Step	Result
Build connector tar	✅
Build destination-snowflake docker image for platform linux/x86_64	✅
Java Connector Unit Tests	✅
Java Connector Integration Tests	✅
Validate airbyte-integrations/connectors/destination-snowflake/metadata.yaml	✅
Connector version semver check	❌
QA checks	✅

🔗 View the logs here

☁️ View runs for commit in Dagger Cloud

Please note that tests are only run on PR ready for review. Please set your PR to draft mode to not flood the CI engine and upstream service on following commits.
You can run the same pipeline locally on this branch with the airbyte-ci tool with the following command

airbyte-ci connectors --name=destination-snowflake test

[postamar]

Green for source-google-sheets as well: https://github.com/airbytehq/airbyte/actions/runs/6187637825/job/16797910130
I also ran locally to make sure I didn't break things there.

[github-actions]

destination-snowflake test report (commit ef36fa50f7) - ❌

⏲️ Total pipeline duration: 11mn04s

Step	Result
Build connector tar	✅
Build destination-snowflake docker image for platform linux/x86_64	✅
Java Connector Unit Tests	✅
Java Connector Integration Tests	✅
Validate airbyte-integrations/connectors/destination-snowflake/metadata.yaml	✅
Connector version semver check	❌
QA checks	✅

🔗 View the logs here

☁️ View runs for commit in Dagger Cloud

Please note that tests are only run on PR ready for review. Please set your PR to draft mode to not flood the CI engine and upstream service on following commits.
You can run the same pipeline locally on this branch with the airbyte-ci tool with the following command

airbyte-ci connectors --name=destination-snowflake test

[github-actions]

destination-snowflake test report (commit 1825d6ca8a) - ❌

⏲️ Total pipeline duration: 03mn04s

Step	Result
Build connector tar	✅
Build destination-snowflake docker image for platform linux/x86_64	✅
Java Connector Unit Tests	✅
Java Connector Integration Tests	✅
Validate airbyte-integrations/connectors/destination-snowflake/metadata.yaml	✅
Connector version semver check	❌
QA checks	✅

🔗 View the logs here

☁️ View runs for commit in Dagger Cloud

Please note that tests are only run on PR ready for review. Please set your PR to draft mode to not flood the CI engine and upstream service on following commits.
You can run the same pipeline locally on this branch with the airbyte-ci tool with the following command

airbyte-ci connectors --name=destination-snowflake test

[postamar]

/approve-and-merge reason="not waiting for legacy CI"

[postamar]

Thanks for the review! I've addressed all comments and ran some extra tests.

[octavia-approvington]

You did it!