3F - RESOLUTION APPROVING SUPPLEMENTAL AGREEMENT NO. 1 BETWEEN HORIZON CONTRACTORS, INC. AND MIAMI-DADE COUNTY FOR DESIGN-BUILD SERVICES FOR THE PROJECT TITLED ROADWAY IMPROVEMENTS TO NW 84 AVENUE FROM NW 58 STREET TO NW 74 STREET (PROJECT NO. DB21-DTPW-04; CONTRACT NO. 20210035); INCREASING CONTRACT DURATION BY 421 NON-COMPENSABLE CALENDAR DAYS AND AUTHORIZING THE COUNTY MAYOR OR COUNTY MAYOR'S DESIGNEE TO EXECUTE SAME AND TO EXERCISE THE PROVISIONS CONTAINED THEREIN(Transportation and Public Works)