Add support for STATEPATH via ups.conf #2502

Job	Run time
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, no)	4m 29s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-1.0)	5m 2s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, no, libusb-0.1)	4m 23s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, no)	4m 48s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-1.0)	4m 24s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, nss, libusb-0.1)	5m 24s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, no)	4m 15s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-1.0)	4m 39s
Analyze (cpp, ubuntu-latest, CC=gcc CXX=g++, openssl, libusb-0.1)	4m 39s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, no)	3m 59s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-1.0)	4m 27s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, no, libusb-0.1)	4m 32s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, no)	4m 7s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-1.0)	4m 57s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, nss, libusb-0.1)	4m 29s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, no)	4m 39s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-1.0)	4m 31s
Analyze (cpp, ubuntu-latest, CC=clang CXX=clang++, openssl, libusb-0.1)	4m 59s
Analyze (python, ubuntu-latest, PYTHON=python3, no, no)	49s
	1h 23m 32s

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