[manylinux2010] No package hostname available

[xuyang2]

Build log:
https://github.com/pypa/manylinux/runs/2050581528?check_suite_focus=true#step:6:307

No package hostname available.

Related PR:
#989
0d1abb7#diff-19bc175bc3531e79c3e8aa492e88a96a7408d49edc59be0ce11709a700bc3646R47

[xuyang2]

Seems no package hostname available for centos 6

https://repology.org/project/hostname/versions