docs/config-prereqs.txt: update the MacOS chapter a bit #2567

Job	Run time
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, no)	4m 53s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-1.0)	4m 48s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-0.1)	4m 47s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, no)	4m 42s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-1.0)	5m 18s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-0.1)	4m 54s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, no)	5m 46s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-1.0)	4m 58s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-0.1)	4m 58s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, no)	5m 12s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-1.0)	4m 58s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-0.1)	5m 8s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, no)	4m 51s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-1.0)	5m 24s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-0.1)	5m 3s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, no)	5m 7s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-1.0)	5m 15s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-0.1)	5m 22s
Analyze (python, ubuntu-latest, PYTHON=python3, no, no)	1m 7s
	1h 32m 31s

Provide feedback