gnu: r-doby: Update to 4.6.6.

* gnu/packages/cran.scm (r-doby): Update to 4.6.6.
[propagated-inputs]: Remove r-dplyr and r-plyr.
[native-inputs]: Add r-knitr.

gnu/packages/cran.scm

@@ -7023,26 +7023,26 @@ the work.")
 (define-public r-doby
   (package
     (name "r-doby")
-    (version "4.6.5")
+    (version "4.6.6")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "doBy" version))
        (sha256
         (base32
-         "1ckazh701b4ilg8bj17ji903538jmb49d997gm49ah5j5jc1x0g7"))))
+         "0wz1vmsf1545r1m42q88s675ncwvm8figjn7kzbngjn9aqck9qbq"))))
     (properties `((upstream-name . "doBy")))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-broom" ,r-broom)
        ("r-deriv" ,r-deriv)
-       ("r-dplyr" ,r-dplyr)
        ("r-magrittr" ,r-magrittr)
        ("r-mass" ,r-mass)
        ("r-matrix" ,r-matrix)
-       ("r-plyr" ,r-plyr)
        ("r-pbkrtest" ,r-pbkrtest)
        ("r-tibble" ,r-tibble)))
+    (native-inputs
+     `(("r-knitr" ,r-knitr)))
     (home-page "http://people.math.aau.dk/~sorenh/software/doBy/")
     (synopsis "Groupwise statistics, LSmeans, linear contrasts, and utilities")
     (description