bump 0.5.6

Author: ringabout

src/prologue/core/constants.nim

@@ -1,4 +1,4 @@
 const
-  PrologueVersion* = "0.5.4"            ## The current version of Prologue.
+  PrologueVersion* = "0.5.6"            ## The current version of Prologue.
   ProloguePrefix* = "PROLOGUE"          ## The helper prefix for environment variables.
   useAsyncHTTPServer* = defined(windows) or defined(usestd) ## Uses `asynchttpserver`.