Update dependency org.springframework:spring-core to v5.3.39 #345

All 144 177 tests pass in 2m 1s

144 177 tests ±0 144 177 ✔️ ±0 2m 1s ⏱️ ±0s
        24 suites ±0           0 💤 ±0
        24 files ±0           0 ❌ ±0

Results for commit bb1f274. ± Comparison against earlier commit 6f217f4.