Update to version 0.20.4; Fixes RHBZ#2261838

.gitignore

@@ -10,3 +10,4 @@
 /darling-0.14.3.crate
 /darling-0.14.4.crate
 /darling-0.20.3.crate
+/darling-0.20.4.crate

darling-fix-metadata-auto.diff

@@ -1,6 +1,6 @@
---- darling-0.20.3/Cargo.toml	1970-01-01T00:00:01+00:00
-+++ darling-0.20.3/Cargo.toml	2023-08-01T11:15:10.439653+00:00
-@@ -48,11 +48,5 @@
+--- darling-0.20.4/Cargo.toml	1970-01-01T00:00:01+00:00
++++ darling-0.20.4/Cargo.toml	2024-01-30T16:30:55.442760+00:00
+@@ -48,11 +48,6 @@
  diagnostics = ["darling_core/diagnostics"]
  suggestions = ["darling_core/suggestions"]
  
@@ -12,3 +12,4 @@
 -
  [badges.maintenance]
  status = "actively-developed"
++

rust-darling.spec

@@ -1,21 +1,21 @@
-# Generated by rust2rpm 24
+# Generated by rust2rpm 25
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate darling
 
 Name:           rust-darling
-Version:        0.20.3
+Version:        0.20.4
 Release:        %autorelease
 Summary:        Parse attributes into structs for custom derive implementations
 
 License:        MIT
 URL:            https://crates.io/crates/darling
 Source:         %{crates_source}
-# Automatically generated patch to strip foreign dependencies
+# Automatically generated patch to strip dependencies and normalize metadata
 Patch:          darling-fix-metadata-auto.diff
 
-BuildRequires:  rust-packaging >= 21
+BuildRequires:  cargo-rpm-macros >= 24
 
 %global _description %{expand:
 A proc-macro library for reading attributes into structs when
@@ -75,7 +75,7 @@ use the "suggestions" feature of the "%{crate}" crate.
 %ghost %{crate_instdir}/Cargo.toml
 
 %prep
-%autosetup -n %{crate}-%{version_no_tilde} -p1
+%autosetup -n %{crate}-%{version} -p1
 %cargo_prep
 
 %generate_buildrequires

rust2rpm.conf

@@ -1,2 +0,0 @@
-[DEFAULT]
-summary = Parse attributes into structs for custom derive implementations

rust2rpm.toml

@@ -0,0 +1,3 @@
+[package]
+summary = "Parse attributes into structs for custom derive implementations"
+

sources

@@ -1 +1 @@
-SHA512 (darling-0.20.3.crate) = 4ef4cd5d4c915d2d5ba2c97777822f81a5f20546352059144e2ad1559df6d38660916d8ebf51085964e57150f572ccff5c12826854c8d2131c9ebe0339f87418
+SHA512 (darling-0.20.4.crate) = 95c403d59a7ea2296864617a162d48dc698e70c84b5f412b0a9ca5ae20dcc3f062f564bb9b38401ccb908f65931f760877663e353e58422c03e0b57cc4e3c9e5