io-libs: update adios2 to 2.12.0

- adios2: 2.11.0 -> 2.12.0
  upstream: ornladios/ADIOS2

Command: `misc/check_for_package_updates.py -v -o markdown adios2
  --update`

Signed-off-by: Adrian Reber <areber@redhat.com>

Author: adrianreber