[3.12] gh-106723: forward -Xfrozen_modules option to spawned process interpreters (GH-106724) (#107367)

gh-106723: forward -Xfrozen_modules option to spawned process interpreters (GH-106724)
(cherry picked from commit 3dcac785810df4d9db50abe90847eaf03bbdaaf4)

Co-authored-by: Felipe A. Hernandez <ergoithz@gmail.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Co-authored-by: Gregory P. Smith <greg@krypto.org>