Bump compat on PrettyTables (#26)

Author: chriselrod

Project.toml

@@ -1,6 +1,6 @@
 name = "LinuxPerf"
 uuid = "b4c46c6c-4fb0-484d-a11a-41bc3392d094"
-version = "0.3.3"
+version = "0.3.4"
 
 [deps]
 Formatting = "59287772-0a20-5a39-b81b-1366585eb4c0"
@@ -9,5 +9,5 @@ Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 
 [compat]
 Formatting = "0.4"
-PrettyTables = "0.9, 1"
+PrettyTables = "0.9, 1, 2"
 julia = "1"