Test fix nightly FIPS tests in jenkins

[iperalta7]

Desired Outcome

Fix for failures in some of the nightly EE FIPS tests.docker compose is not being recognized in the pipeline specifically under the rehl executors. Docker-compose should instead be used when the system is on rehl since it uses an older docker version/and unable to run compose v2 syntax.

Implemented Changes

ENV variable now used to determine the system the executor is on. Docker-compose if on Red Hat Enterprise Linux otherwise just do Docker compose.

Connected Issue/Story

CyberArk internal issue ID: CNJR-2310

Definition of Done

At least 1 todo must be completed in the sections below for the PR to be
merged.

Changelog

• The CHANGELOG has been updated, or
• This PR does not include user-facing changes and doesn't require a
  CHANGELOG update

Test coverage

• This PR includes new unit and integration tests to go with the code
  changes, or
• The changes in this PR do not require tests

Documentation

• Docs (e.g. READMEs) were updated in this PR
• A follow-up issue to update official docs has been filed here: [insert issue ID]
• This PR does not require updating any documentation

Behavior

• This PR changes product behavior and has been reviewed by a PO, or
• These changes are part of a larger initiative that will be reviewed later, or
• No behavior was changed with this PR

Security

• Security architect has reviewed the changes in this PR,
• These changes are part of a larger initiative with a separate security review, or
• There are no security aspects to these changes

[codeclimate]

Code Climate has analyzed commit b11cb84 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 87.2% (-1.0% change).

View more on Code Climate.

[codihuston]

LGTM! Thank you!