gnu: Add rust-windows-implement-0.48.

* gnu/packages/crates-io.scm (rust-windows-implement-0.48): New variable.
(rust-windows-implement-0.46): Inherit from rust-windows-implement-0.48.

Change-Id: I428cd4739f9bb86bea4bba7c434a86afac3c596d

gnu/packages/crates-io.scm

@@ -83405,8 +83405,32 @@ (define-public rust-windows-i686-msvc-0.28
                (base32
                 "0r0z8s1wcdwd20azsdfilf2a6bz68xkavl990wy64hyc8f51bmai"))))))
 
+(define-public rust-windows-implement-0.48
+  (package
+    (name "rust-windows-implement")
+    (version "0.48.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "windows-implement" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1764n853zd7bb0wn94i0qxfs6kdy7wrz7v9qhdn7x7hvk64fabjy"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-proc-macro2" ,rust-proc-macro2-1)
+        ("rust-quote" ,rust-quote-1)
+        ("rust-syn" ,rust-syn-1))))
+    (home-page "https://github.com/microsoft/windows-rs")
+    (synopsis "The implement macro for the windows crate")
+    (description "This package provides the @code{implement} macro for the
+windows crate.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-windows-implement-0.46
   (package
+    (inherit rust-windows-implement-0.48)
     (name "rust-windows-implement")
     (version "0.46.0")
     (source (origin
@@ -83416,18 +83440,12 @@ (define-public rust-windows-implement-0.46
               (sha256
                (base32
                 "09kw706qcms5yy34lf714zspj34v8jirfxv7yycavpcsa9czpd69"))))
-    (build-system cargo-build-system)
     (arguments
      `(#:skip-build? #t
        #:cargo-inputs
        (("rust-proc-macro2" ,rust-proc-macro2-1)
         ("rust-quote" ,rust-quote-1)
-        ("rust-syn" ,rust-syn-1))))
+        ("rust-syn" ,rust-syn-1))))))
-    (home-page "https://github.com/microsoft/windows-rs")
-    (synopsis "The implement macro for the windows crate")
-    (description "This package provides the @code{implement} macro for the
-windows crate.")
-    (license (list license:expat license:asl2.0))))
 
 (define-public rust-windows-implement-0.32
   (package