docs: finalize re-licensing of `scripts/installer` … #2044

Job	Run time
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, no)	3m 57s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-1.0)	4m 41s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-0.1)	4m 35s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, no)	4m 19s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-1.0)	5m 15s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-0.1)	5m 5s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, no)	4m 26s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-1.0)	4m 34s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-0.1)	4m 42s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, no)	5m 7s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-1.0)	5m 24s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-0.1)	5m 3s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, no)	4m 18s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-1.0)	8m 12s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-0.1)	4m 41s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, no)	5m 9s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-1.0)	4m 34s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-0.1)	4m 31s
Analyze (python, ubuntu-latest, PYTHON=python3, no, no)	1m 39s
	1h 30m 12s

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