Whitelist versions emitted by netcdf-sys #328

Job	Run time
Address sanitizer	1m 42s
rustfmt	1m 53s
mpi-runner	1m 24s
conda (ubuntu, conda-forge, stable)	1m 2s
static builds (ubuntu-latest, stable)	1m 25s
conda (windows, conda-forge, stable)	2m 32s
static builds (windows-latest, stable-msvc)	5m 19s
test apt (stable)	40s
conda (macos, conda-forge, stable)	1m 11s
static builds (windows-latest, stable-gnu)	5m 43s
test apt (beta)	40s
static builds (macos-12, stable)	3m 33s
test apt (nightly)	40s
static builds (macos-latest, stable)	1m 50s
	29m 34s

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