chore(ci): do not default to tracing mode in jobs execution

[gustavovalverde]

Motivation

Some jobs are hard to analyze as some variables are showing their values by default (which in some cases is the full log), multiple times in a single step.

If we'd like to debug with tracing, we can re-run a job with debugging on.

Solution

• Remove the shell option with -x in most of the integration testing jobs

Tests

• Tests should pass in this PR

PR Author's Checklist

• The PR name will make sense to users.
• The PR provides a CHANGELOG summary.
• The solution is tested.
• The documentation is up to date.
• The PR has a priority label.

PR Reviewer's Checklist

• The PR Author's checklist is complete.
• The PR resolves the issue.

[arya2]

Looks good! Would we be temporarily reverting these changes when we want to re-run a test with debug info?