Add healthcheck port to docker-compose.yml for svc-bip-api #7

All 107 tests pass in 59s

107 tests ±0 107 ✔️ ±0 59s ⏱️ +13s
  37 suites ±0     0 💤 ±0
  37 files ±0     0 ❌ ±0

Results for commit f3a07d2. ± Comparison against earlier commit 5eb6342.