remove scapval test from gating

[vojtapolasek]

Description:

• exclude the /static-tests/nist-validation from tests being run as gating for PRs

Rationale:

• This test is often failing because of unrelated reasons such as third party sites not being available
• also usefulness of such a test in PR gating is small because our datastreams will always fail some parts of the SCAP validation process

Review Hints:

• check gating tests and ensure that the /static-tests/nist-validation test is not executed

[Mab879]

/retest

[codeclimate]

Code Climate has analyzed commit 7aa90f2 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 62.0% (0.0% change).

View more on Code Climate.

[Mab879]

/retest-required

[jan-cerny]

I have checked that both CS8 and CS9 static-checks jobs don't contain the nist-validation test.