Update config.guess, rerun autotools, update gitignore #113

Job	Run time
Run tests (ubuntu-20.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	2m 7s
Run tests (ubuntu-20.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	2m 2s
Run tests (ubuntu-22.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	3m 41s
Run tests (ubuntu-22.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	2m 22s
Run tests (macos-13, false, brew install metis bash, CC=clang OSX=13)	3m 9s
Run tests (macos-13, false, brew install metis bash, CC=gcc-13 CXX=g++-13 OSX=13 ADD_CXXFLAGS=-Wl...	3m 43s
Run tests (macos-14, false, brew install metis bash, arm64, CC=gcc-13 CXX=g++-13 OSX=14 ADD_CXXFL...	2m 23s
	19m 27s

Provide feedback