Update rdoc dependency to version 3.12
Update rdoc dependency to version 3.12

codefornigeria/adopt-a-hydrant,codeforsavannah/adopt-a-garden,codefornigeria/adopt-a-hydrant,billyfung/van-racks,mapmeld/Adopt-a-Siren-Macon,OpenTwinCities/adopt-a-tree,jasnow/adopt-a-hydrant,openoakland/adopt-a-drain,Bryanprz/adopt-a-street,eebbesen/adopt-a-tree,jamiekelly/adopt-a-hydrant,jasnow/adopt-a-hydrant,siruguri/adopt-a-drain,CostantinB/adopt-a-hydrant,jamiekelly/adopt-a-hydrant,codeforanchorage/adopt-a-hydrant,voyera/adopt-a-hydrant,OpenTwinCities/adopt-a-tree,code4sac/adopt-a-light,Stackato-Apps/adopt-a-hydrant,voyera/adopt-a-hydrant,codeforamerica/adopt-a-hydrant,voyera/adopt-a-hydrant,friendlycode/adopt-a-hydrant,jamiekelly/adopt-a-hydrant,jasnow/adopt-a-hydrant,Stackato-Apps/adopt-a-hydrant,billyfung/van-racks,t-pfaff/adopt-a-hydrant,HackMichiana/adopt-a-bus-stop,openoakland/adopt-a-drain,baraka101/dar-adopt-a-mtaro,Stackato-Apps/adopt-a-hydrant,mapmeld/Adopt-a-Siren-Macon,codeforamerica/adopt-a-siren,0111001101111010/adopt-a-spot-odu,codeforboston/adopt-a-hydrant,baraka101/dar-adopt-a-mtaro,codeforanchorage/adopt-a-hydrant,OpenTwinCities/adopt-a-tree,code4sac/adopt-a-light,eebbesen/adopt-a-tree,CostantinB/adopt-a-hydrant,HackMichiana/adopt-a-bus-stop,akintoey/adopt-a-hydrant,billyfung/van-racks,Bryanprz/adopt-a-street,t-pfaff/adopt-a-hydrant,OpenTwinCities/adopt-a-tree,codefornigeria/adopt-a-hydrant,t-pfaff/adopt-a-hydrant,akintoey/adopt-a-hydrant,0111001101111010/adopt-a-spot-odu,codeforsavannah/adopt-a-garden,codeforamerica/adopt-a-hydrant,openshift-quickstart/adopt-a-hydrant-openshift-quickstart,friendlycode/adopt-a-hydrant,siruguri/adopt-a-drain,codeforamerica/adopt-a-siren,openshift-quickstart/adopt-a-hydrant-openshift-quickstart,eebbesen/adopt-a-tree,codeforboston/adopt-a-hydrant,openshift-quickstart/adopt-a-hydrant-openshift-quickstart,CostantinB/adopt-a-hydrant,akintoey/adopt-a-hydrant,Bryanprz/adopt-a-street,siruguri/adopt-a-drain,codeforamerica/adopt-a-hydrant,baraka101/dar-adopt-a-mtaro,friendlycode/adopt-a-hydrant