3I - RESOLUTION AUTHORIZING ADDITIONAL EXPENDITURE AUTHORITY IN THE AMOUNT OF $4,849,000.00 FOR A TOTAL MODIFIED CONTRACT AMOUNT OF $50,541,748.00 FOR CONTRACT NO. 4400008468, PUBLIC SAFETY & EMERGENCY EQUIPMENT & SERVICES, FOR MIAMI-DADE AVIATION DEPARTMENT AND MIAMI-DADE FIRE RESCUE; AND AUTHORIZING THE COUNTY MAYOR OR COUNTY MAYOR'S DESIGNEE TO EXERCISE ALL PROVISIONS OF THE CONTRACT, INCLUDING ANY CANCELLATION OR EXTENSIONS, PURSUANT TO SECTION 2-8.1 OF THE CODE OF MIAMI-DADE COUNTY, FLORIDA AND IMPLEMENTING ORDER 3-38(Strategic Procurement)