gnu: r-callr: Update to 2.0.3.

* gnu/packages/cran.scm (r-callr): Update to 2.0.3.

gnu/packages/cran.scm

@@ -164,14 +164,14 @@ such as copy/paste from an R session.")
 (define-public r-callr
   (package
     (name "r-callr")
-    (version "2.0.2")
+    (version "2.0.3")
     (source
      (origin
        (method url-fetch)
        (uri (cran-uri "callr" version))
        (sha256
         (base32
-         "0m51p39vfwldxv6h8x4y9w3laf8q9bldhfqhlcrlx3xhy3irb1bp"))))
+         "1k3mflgn10hcvy74y4pbigpv74zb66fz1phfd3c8isqmn88xbxzi"))))
     (build-system r-build-system)
     (propagated-inputs
      `(("r-assertthat" ,r-assertthat)