Update config.guess, rerun autotools, update gitignore #262

Job	Run time
Run tests (ubuntu-20.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	6m 30s
Run tests (ubuntu-20.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	6m 14s
Run tests (ubuntu-22.04, true, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libnau...	7m 14s
Run tests (ubuntu-22.04, false, sudo apt install -y -qq gfortran liblapack-dev libmetis-dev libna...	6m 48s
Run tests (macos-13, false, brew install metis bash, CC=clang OSX=13)	9m 41s
Run tests (macos-13, false, brew install metis bash, CC=gcc-13 CXX=g++-13 OSX=13 ADD_CXXFLAGS=-Wl...	10m 26s
Run tests (macos-14, false, brew install metis bash, arm64, CC=gcc-13 CXX=g++-13 OSX=14 ADD_CXXFL...	6m 1s
	52m 54s

Provide feedback