tests: Avoid hardcoding 64b arch path to pkcs11-spy

The pkcs11-spy was in between the pkcs11 provider and the p11-kit mostly for debugging and it should not have been committed, even though it provide useful insights into what is going on between the provider and the pkcs11 module.

But the hardcoded path works only on 64b architecture so I commented it out for default builds to pass.

Checklist

• Commits have Signed-off-by: with name/author being identical to the commit author
• Code modified for feature
• Test suite updated with functionality tests
• Test suite updated with negative tests
• Documentation updated

Reviewer's checklist:

• Any issues marked for closing are addressed
• There is a test suite reasonably covering new functionality or modifications
• Function naming, parameters, return values, types, etc., are consistent and according to CONTRIBUTING.md
• This feature/change has adequate documentation added
• No obvious mistakes in the code