deps: fix OPENSSLDIR on Windows
Backslashes and spaces are need to be escaped to define OPENSSLDIR to "C:\Program Files\Common Files\SSL".
Refs: https://github.com/nodejs/node/issues/29455
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines