Bump h2 from 1.3.171 to 2.1.210 in /rexster-server#398

dependabot[bot] wants to merge 1 commit intomastertinkerpop/rexster:masterfrom

dependabot/maven/rexster-server/com.h2database-h2-2.1.210tinkerpop/rexster:dependabot/maven/rexster-server/com.h2database-h2-2.1.210Copy head branch name to clipboard