Stop testing compatibility against Databricks 7.3

[findinpath]

Description

Databricks 7.3 is reaching on September 2023 end of support.

Release notes

(x) This is not user-visible or docs only and no release notes are required.

[findepi]

some checks have failed

[findepi]

% CI

[ebyhr]

Please remove 7.3 LTS from delta-lake.rst:

* Tables written by Databricks Runtime 7.3 LTS, 9.1 LTS, 10.4 LTS, 11.3 LTS, and
  12.2 LTS are supported.

[findepi]

While at it, would it make sense to capture some tables created by 7.3 as static test resources and run tests against them?

Then we wouldn't change this file. Of course it's less about changing this file, but more about staying compatible with data out there. We should be able to read any Delta table, including those written by DBR << 7.

[findinpath]

BTW, I think most of the initial tables from the test resources used for testing trino-delta-lake are actually created with Databricks 7.3.

Trino can likely read as well tables written with non-LTS version of Databricks, but we're not mentioning this here.
I think there's no loss / misleading information if we remove 7.3 LTS from the documentation.

[findepi]

I care less about docs, and more about testing coverage.
Tables created by DBR 7.3 do exist in the world and we must keep supporting them.
Is this test covered?

[findinpath]

@findepi please run the PR with secrets (I've slipped in a change which enables an existing product tests).

[ebyhr]

/test-with-secrets sha=ca1b3e7f8795a7c59d60b2bb41f2aabc3ed65069

[github-actions]

The CI workflow run with tests that require additional secrets finished as failure: https://github.com/trinodb/trino/actions/runs/5850234042

[findinpath]

I guess that the failure pt (default, suite-delta-lake-databricks73, ) has to do with the fact that test-with-secrets functionality doesn't cope well with changes on ci.yml file.

[ebyhr]

Sent #18665 within repository.

[findinpath]

Rebased on master to address conflicts

[findepi]

/test-with-secrets sha=7cb65b2d1451359ce579e76fa22fa5c507e6f0e4

[github-actions]

The CI workflow run with tests that require additional secrets finished as failure: https://github.com/trinodb/trino/actions/runs/6028127061

[ebyhr]

Updated mirror PR #18665 within the repository because the /test-with-secrets command failed because of ci.yml change.

[findinpath]

Unrelated test infra failure:
ci / pt (default, suite-3) failed because not being able to retrieve the docker image from ghcr.io
https://github.com/trinodb/trino/actions/runs/6027449276/job/16353173416?pr=18538

2023-08-30T16:51:12.761Z	ERROR	main	io.trino.tests.product.launcher.cli.TestRun	Failure
org.testcontainers.containers.ContainerFetchException: Can't get Docker image: RemoteDockerImage(imageName=ghcr.io/trinodb/testing/hdp2.6-hive-kerberized:81, imagePullPolicy=io.trino.testing.containers.ConditionalPullPolicy@4978777f, imageNameSubstitutor=org.testcontainers.utility.ImageNameSubstitutor$LogWrappedImageNameSubstitutor@4215e133)