Revert "Reduce concurrent integration tests"

[selzoc]

Reverts #453

After cloudfoundry/bosh#2792 I don't think it's necessary anymore - here is a successful run without the value set: https://ci.bosh-ecosystem.cf-app.com/teams/main/pipelines/bosh-agent-main/jobs/bosh-integration-tests/builds/608

(already flown)

[coderabbitai]

Walkthrough

Updated the bosh-integration-tests CI job to use PostgreSQL, run the spec:integration rake task, disable coverage, and remove the PARALLEL_TEST_MULTIPLY_PROCESSES parameter.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description provides brief context but omits most required template sections like tests, release notes, breaking changes, and tags.	Fill in the missing template sections, especially tests run, release notes, breaking change impact, tagged reviewers, and AI Review Feedback.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title accurately summarizes the revert of the reduced concurrent integration tests change.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch revert-453-reduce-concurrent-integration-tests

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