Merge topic 'cxxmodules-ninja-1.11'

8d4e510a44 Merge branch 'backport-cxxmodules-ninja-1.11' into cxxmodules-ninja-1.11
7abddcab08 Ninja: require Ninja 1.11 for C++ module support
0512428ad9 Ninja: require Ninja 1.11 for C++ module support

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8099