[FIX] l10n_be_hr_payroll_group_s: fixes group_s visibilty

[kais-odoo]

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:

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I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

[robodoo]

[Bertrand2]

robodoo r+

[robodoo]

@Bertrand2 you may want to rebuild or fix this PR as it has failed CI.