Alphabetize dependencies

Author: capnrefsmmat

R-packages/covidcast/DESCRIPTION

@@ -39,22 +39,22 @@ LazyData: true
 Roxygen: list(markdown = TRUE)
 Imports:
   dplyr,
+  ggplot2,
+  grDevices,
   httr,
-  purrr,
   jsonlite,
-  usmap,
   maptools,
-  ggplot2,
-  grDevices,
+  purrr,
   rlang,
-  tidyr
+  tidyr,
+  usmap
 RoxygenNote: 7.1.1
 Suggests: 
+    gridExtra,
     knitr,
+    mockery,
     rmarkdown,
-    gridExtra,
     testthat,
     tibble,
-    mockery,
     vdiffr
 VignetteBuilder: knitr