chore(deps): update dependency flask to v3.1.2 (#32)

Ref: PACT-445

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==3.1.1
+Flask==3.1.2
 pytest==8.4.1
 requests==2.32.5
 pact_python==2.3.3