[3.13] CI: set correct working directory for Hypothesis cache (GH-119345) (#132364)

CI: set correct working directory for Hypothesis cache (GH-119345)

Set cwd for Hypothesis database
(cherry picked from commit 055c739536ad63b55ad7cd0b91ccacc33064fe11)

Co-authored-by: Zac Hatfield-Dodds <zac.hatfield.dodds@gmail.com>