cmake: patch boost source to support python 3.10

cmake: patch boost source to support python 3.10

Python 3.10 doesn't include the _Py_fopen() function.  Boost
1.75.0 includes a patch which switches to using fopen() for
python versions >= 3.1, but Pacific is using boost 1.73.0,
which still uses _Py_fopen().  This commit adds the boost
1.75.0 patch to `make-dist`, so it's applied to our copy of
the boost source which is then used when building RPM packages.

the included patch comes from
https://github.com/boostorg/python/commit/d9f06052e28873037db7f98629bce72182a42410

Fixes: https://tracker.ceph.com/issues/56466
please note, this change is not cherry-picked from the
"main" branch. as we use boost 1.75 already in that branch,
but to minimize the risk of switching boost from 1.73 to
1.75 in a LTS branch like pacific, we just add a fix to
address this particular issue in boost 1.73.

Signed-off-by: Tim Serong <tserong@suse.com>
Signed-off-by: Kefu Chai <tchaikov@gmail.com>