sort checkSuites or checkRuns by creation date

[Christopher Dignam]

While the GitHub API returns these ordered by creation date, they suggest sorting by creation date to be sure.

kodiak/bot/kodiak/queries/__init__.py

Lines 192 to 201 in 9285f78

             checkSuites(first: 100) { 
               nodes { 
                 checkRuns(first: 100) { 
                   nodes { 
                     name 
                     conclusion 
                   } 
                 } 
               } 
             }