bump x.y.z version to odd y following creation of RELEASE_3_21 branch

Author: jwokaty

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: derfinderPlot
 Type: Package
 Title: Plotting functions for derfinder
-Version: 1.42.0
+Version: 1.43.0
 Date: 2021-11-22
 Authors@R: c(person("Leonardo", "Collado-Torres", role = c("aut", "cre"), email
     = "lcolladotor@gmail.com", comment = c(ORCID = "0000-0003-2140-308X")),