chore(deps): update dependency pact_python to v2.3.1 (#20)

Co-authored-by: pactflow-renovate-bot[bot] <186667433+pactflow-renovate-bot[bot]@users.noreply.github.com>

Author: pactflow-renovate-bot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 Flask==2.3.3
 pytest==6.2.5
 requests==2.32.4
-pact_python==2.2.2
+pact_python==2.3.1