back to lowercase for pkg-config names #52

Job	Run time
test-langs (ubuntu-latest, 3.10, c)	2m 27s
test-langs (ubuntu-latest, 3.10, cxx)	2m 34s
test-langs (ubuntu-latest, 3.10, python)	1m 44s
test-langs (ubuntu-latest, 3.10, fortran)	2m 33s
test-langs (ubuntu-latest, 3.11, c)	1m 58s
test-langs (ubuntu-latest, 3.11, cxx)	2m 8s
test-langs (ubuntu-latest, 3.11, python)	2m 10s
test-langs (ubuntu-latest, 3.11, fortran)	2m 24s
test-langs (ubuntu-latest, 3.12, c)	2m 5s
test-langs (ubuntu-latest, 3.12, cxx)	2m 15s
test-langs (ubuntu-latest, 3.12, python)	1m 37s
test-langs (ubuntu-latest, 3.12, fortran)	2m 14s
test-langs (macos-latest, 3.10, c)	6m 47s
test-langs (macos-latest, 3.10, cxx)	4m 57s
test-langs (macos-latest, 3.10, python)	3m 3s
test-langs (macos-latest, 3.10, fortran)	5m 1s
test-langs (macos-latest, 3.11, c)	5m 50s
test-langs (macos-latest, 3.11, cxx)	6m 55s
test-langs (macos-latest, 3.11, python)	3m 16s
test-langs (macos-latest, 3.11, fortran)	5m 18s
test-langs (macos-latest, 3.12, c)	5m 16s
test-langs (macos-latest, 3.12, cxx)	4m 48s
test-langs (macos-latest, 3.12, python)	3m 33s
test-langs (macos-latest, 3.12, fortran)	5m 14s
	1h 26m 7s

Provide feedback