Bump retrofit from 2.2.0 to 2.5.0#113

dependabot[bot] wants to merge 1 commit intomasterplivo/plivo-java:masterfrom

dependabot/maven/com.squareup.retrofit2-retrofit-2.5.0plivo/plivo-java:dependabot/maven/com.squareup.retrofit2-retrofit-2.5.0Copy head branch name to clipboard