Workers’ compensation — Supplemental benefits — Claimant over the age of 62 — Order finding that claimant was entitled to supplemental benefits past the age of 62 because compensable injury prevented claimant from working sufficient quarters to be eligible for social security disability benefits — Judge of compensation claims’ finding was not supported by competent substantial evidence where finding was based solely on claimant’s testimony he did not have sufficient quarters to qualify for social security disability and that he would have continued to work for employer if he had not been injured, and claimant provided no documentation or details to support those assertions — Even assuming claimant provided more detail, given the uncertain and sporadic nature of his employment, it is a matter of speculation whether he would have worked sufficient quarters if compensable injury had not prevented him from working