chore(deps): update postgres docker digest to 29574e2 (#119)

Ref: PACT-445

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

Author: pactflow-renovate-bot[bot]

docker-compose.yml

@@ -18,7 +18,7 @@ services:
       PACT_BROKER_DATABASE_CONNECT_MAX_RETRIES: "10"
       PACT_BROKER_PUBLIC_HEARTBEAT: "true"
   postgres:
-    image: postgres@sha256:7be29db83c6f7084804058fe18952f19424fdab3131caaaf2e90dd21076e0341
+    image: postgres@sha256:29574e213ffaf433ca9c9441a5919868b85ec04e7a32377f48edd3d3f972103d
     healthcheck:
       test: psql postgres --command "select 1" -U postgres
     ports: