Adapt %cargo_prep macro to fix builds with Rust 1.62+

Starting with Rust 1.62, cargo fails if Cargo.toml.orig already exists,
so it needs to be removed in %cargo_prep.

0005-macros.cargo-vacuum-up-Cargo.toml.orig-in-addition-t.patch

@@ -0,0 +1,27 @@
+From 98638813aa1e085e05092ebfcbcad7ce7fd00a44 Mon Sep 17 00:00:00 2001
+From: Fabio Valentini <decathorpe@gmail.com>
+Date: Fri, 1 Jul 2022 19:29:56 +0200
+Subject: [PATCH] macros.cargo: vacuum up Cargo.toml.orig in addition to
+ Cargo.lock
+
+This fixes builds with cargo from Rust 1.62+, which now complains
+and fails our builds if the Cargo.toml.orig file already exists.
+---
+ data/macros.cargo | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/data/macros.cargo b/data/macros.cargo
+index 344b44e..206df14 100644
+--- a/data/macros.cargo
++++ b/data/macros.cargo
+@@ -44,6 +44,7 @@ registry = "https://crates.io"\
+ replace-with = "local-registry"\
+ EOF\
+ %{__rm} -f Cargo.lock \
++%{__rm} -f Cargo.toml.orig \
+ )
+ 
+ %__cargo_parse_opts(naf:) %{shrink:\
+-- 
+2.36.1
+

rust-packaging.spec

@@ -15,6 +15,7 @@ Patch:          0001-Add-comment-about-unused-macro.patch
 Patch:          0002-Allow-easy-overriding-of-the-opt-level-debuginfo-cod.patch
 Patch:        	0003-Fix-autodetection-of-rpmautospec.patch
 Patch:        	0004-Print-information-about-written-files.patch
+Patch:          0005-macros.cargo-vacuum-up-Cargo.toml.orig-in-addition-t.patch
 
 ExclusiveArch:  %{rust_arches}