Update workflows for change in HDF5 option name

[jhendersonHDF]

No description provided.

[brtnfld]

Should we also update the README while we are at it to describe a CMake HDF5 build instead?

cmake -DCMAKE_INSTALL_PREFIX=$HDF5_DIR \
      -DHDF5_ENABLE_PARALLEL:BOOL=ON \
      -DHDF5_ENABLE_THREADSAFE:BOOL=ON \
      -DHDF5_ALLOW_UNSUPPORTED:BOOL=ON \
      -DCMAKE_BUILD_TYPE=Release ..

[jhendersonHDF]

Should we also update the README while we are at it to describe a CMake HDF5 build instead?

Yes, I believe we should do that.

[brtnfld]

Fixed in #39