build: Replace -Wthread-safety-analysis with broader -Wthread-safety

Summary:
This is part [5/5] of Core PR18635 : https://github.com/bitcoin/bitcoin/pull/18635/commits/87766b355c47fcb0f0dcf3f6fe359eb00227d50c

Depends on D7882

Test Plan:

ninja all check

Make sure that clang is happy.

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D7883