Move to 1.10.6

According to h5py/h5py#1505 (comment)
1.10.6 is the latest one working with python2
Above that version only Python3 is supported, and for this we have to move also Keras and Keras-Applications to py3 only, and from there - have only py3 tensorflow.

hdf5.spec

@@ -1,5 +1,5 @@
-### RPM external hdf5 1.12.0
-Source: https://support.hdfgroup.org/ftp/HDF5/releases/%{n}-1.12/%{n}-%{realversion}/src/%{n}-%{realversion}.tar.bz2
+### RPM external hdf5 1.10.6
+Source: https://github.com/HDFGroup/hdf5/archive/hdf5-1_10_6.tar.gz
 BuildRequires: zlib
 
 %prep