riff: update to 2.21.0.

srcpkgs/riff/patches/doublebuild.patch

@@ -4,10 +4,10 @@ Slight hack to prevent a rebuild in the install phase
 
 --- a/Cargo.toml
 +++ b/Cargo.toml
-@@ -19,6 +19,7 @@
- bytecount = "0.6.2"
+@@ -20,6 +20,7 @@
  num_cpus = "1.13.0"
  threadpool = "1.8.1"
+ itertools = "0.10.1"
 +syn = {version = "1.0.48", features = ["full"]}
 
  [dev-dependencies]

srcpkgs/riff/template

@@ -1,6 +1,6 @@
 # Template file for 'riff'
 pkgname=riff
-version=2.20.0
+version=2.21.0
 revision=1
 build_style=cargo
 short_desc="Diff filter highlighting which line parts have changed"
@@ -8,7 +8,7 @@ maintainer="0x5c <dev@0x5c.io>"
 license="MIT"
 homepage="https://github.com/walles/riff"
 distfiles="https://github.com/walles/riff/archive/refs/tags/${version}.tar.gz"
-checksum=7b9c7cee9dadea7e0600121a4b052806926bbe83bd16204be3f878ce1fd747fc
+checksum=2594a1be45a55c59e658898e413bc3356cc84464d03bff24f80c31c7f13e90f9
 
 post_install() {
 	vlicense LICENSE