Bump junit from 4.8.2 to 4.13.1 in /structure-learn/serialization-learn#20

dependabot[bot] wants to merge 1 commit intomasterns7381/java_learn:masterfrom

dependabot/maven/structure-learn/serialization-learn/junit-junit-4.13.1ns7381/java_learn:dependabot/maven/structure-learn/serialization-learn/junit-junit-4.13.1Copy head branch name to clipboard