Update tzinfo dependency to version 0.3.31
Update tzinfo dependency to version 0.3.31

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