gnu: r-modelr: Update to 0.1.6.

* gnu/packages/cran.scm (r-modelr): Update to 0.1.6.
[propagated-inputs]: Add r-tidyselect.

gnu/packages/cran.scm

@@ -473,14 +473,14 @@ the embedded @code{RapidXML} C++ library.")
 (define-public r-modelr
   (package
     (name "r-modelr")
-    (version "0.1.5")
+    (version "0.1.6")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "modelr" version))
        (sha256
         (base32
-         "0nnfhlzz75ihs8azy963cc4cwg1kx81rybk4z3wm98bbghwfxfs5"))))
+         "1x2m34m4qirb401krmgc5wg3g7ndbcglfab2l0655rmky3fz7rfp"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-broom" ,r-broom)
@@ -489,7 +489,8 @@ the embedded @code{RapidXML} C++ library.")
        ("r-purrr" ,r-purrr)
        ("r-rlang" ,r-rlang)
        ("r-tibble" ,r-tibble)
-       ("r-tidyr" ,r-tidyr)))
+       ("r-tidyr" ,r-tidyr)
+       ("r-tidyselect" ,r-tidyselect)))
     (home-page "https://github.com/tidyverse/modelr")
     (synopsis "Helper functions for modelling in pipelines")
     (description