Bump protobuf from 3.13.0 to 3.15.0 in /scripts/adc#2

dependabot[bot] wants to merge 1 commit intomasterairframesio/airframes-client:masterfrom

dependabot/pip/scripts/adc/protobuf-3.15.0airframesio/airframes-client:dependabot/pip/scripts/adc/protobuf-3.15.0Copy head branch name to clipboard