Support Crystal v0.30.0 #1125
Description
Several dependencies need to be updated before we can support Crystal v0.30.0.:
mosop/callback#2
mosop/optarg#7
mosop/cli#19
mosop/teeplate#16
amberframework/liquid.cr#37
will/crystal-pg#178
crystal-lang/crystal-mysql#80
crystal-lang/crystal-sqlite3#43
amberframework/granite#353
amberframework/citrine-i18n#6