[instruments] test plan needs update

[regisoc]

Describe the bug

Point 9. in the test plan is not relevant to this module (configuration in config.xml now in db) and should be reported in the instrument_manager.

9. Check that access restriction in config.xml works.

    In the <instrumentPermissions> section of config.xml
    set the <useInstrumentPermissions> to true
    add the name of an instrument in the <Test_name> tag of the <instrument>
    add the name of a permission in the <permission> tag of the same <instrument>
        create a new permission if needed (permissions table)
    check that the user can access that instruments if and only if they has that permission

Related to #8708