maint(build): add 1.23 to supported versions (#256)

So long as we're internally relying upon libhoney we should run our
tests against the go version we're using in hound. same rationale as
#245

.circleci/config.yml

@@ -17,7 +17,7 @@ filters_publish: &filters_publish
 matrix_goversions: &matrix_goversions
   matrix:
     parameters:
-      goversion: ["19", "20", "21", "22"]
+      goversion: ["19", "20", "21", "22", "23"]
 
 # Default version of Go to use for Go steps
 default_goversion: &default_goversion "20"