acc: limit lines per LOG file in test output

[denik]

Invariant tests write large LOG.planjson files that flood the test log and overflow log viewers. This caps each LOG.* file echoed into the test output to 100 lines on CI and 1000 otherwise, configurable via DATABRICKS_CLI_TEST_MAX_LOG (<= 0 disables the limit).

[github-actions]

Waiting for approval

Based on git history, these people are best suited to review:

• @pietern -- recent work in acceptance/

Eligible reviewers: @andrewnester, @anton-107, @janniklasrose, @lennartkats-db, @rclarey, @renaudhartert-db, @rugpanov, @shreyas-goenka, @simonfaltum

_{Suggestions based on git history. See OWNERS for ownership rules.}

[eng-dev-ecosystem-bot]

Integration test report

Commit: 26fe6e4

Run: 34614233908

	Env	💚​RECOVERED	✅​pass	🙈​skip	Time
💚​	aws linux	1	275	15	10:34
💚​	aws windows	1	277	13	5:40
💚​	azure linux	1	274	15	8:41
💚​	azure windows	1	276	13	4:30
💚​	gcp linux	1	275	15	9:14
💚​	gcp windows	1	277	13	4:32

	Test Name	aws linux	aws windows	azure linux	azure windows	gcp linux	gcp windows
💚​	TestAccept	💚​R	💚​R	💚​R	💚​R	💚​R	💚​R

Top 3 slowest tests (at least 2 minutes):

duration	env	testname
3:38	gcp windows	TestAccept
3:23	azure windows	TestAccept
3:19	aws windows	TestAccept