Prepare CRAN release (#588)

* Prepare CRAN release

* use R 4.0

Author: strengejacke

DESCRIPTION

@@ -1,7 +1,7 @@
 Type: Package
 Package: modelbased
 Title: Estimation of Model-Based Predictions, Contrasts and Means
-Version: 0.13.0.12
+Version: 0.13.1
 Authors@R:
     c(person(given = "Dominique",
              family = "Makowski",
@@ -37,7 +37,7 @@ License: GPL-3
 URL: https://easystats.github.io/modelbased/
 BugReports: https://github.com/easystats/modelbased/issues
 Depends:
-    R (>= 3.6)
+    R (>= 4.0)
 Imports:
     bayestestR (>= 0.17.0),
     datawizard (>= 1.3.0),

NEWS.md

@@ -1,4 +1,4 @@
-# modelbased (devel)
+# modelbased 0.13.1
 
 ## Changes