Add PCRE 8.42 (#8213)
Add PCRE 8.42 (#8213)


mfherbst/spack,krafczyk/spack,tmerrick1/spack,LLNL/spack,mfherbst/spack,LLNL/spack,matthiasdiener/spack,tmerrick1/spack,krafczyk/spack,iulian787/spack,mfherbst/spack,tmerrick1/spack,mfherbst/spack,tmerrick1/spack,matthiasdiener/spack,krafczyk/spack,tmerrick1/spack,iulian787/spack,iulian787/spack,LLNL/spack,mfherbst/spack,iulian787/spack,matthiasdiener/spack,matthiasdiener/spack,matthiasdiener/spack,iulian787/spack,LLNL/spack,krafczyk/spack,LLNL/spack,krafczyk/spack