Bump postgresql from 42.2.18 to 42.2.20 in /modules/junit-jupiter (#4032)
Bump postgresql from 42.2.18 to 42.2.20 in /modules/junit-jupiter (#4032)

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
testcontainers/testcontainers-java,rnorth/test-containers,testcontainers/testcontainers-java,rnorth/test-containers,testcontainers/testcontainers-java,rnorth/test-containers