Relax termcolor dependency to allow versions >= 1.2

ansi_colours-fix-metadata.diff

@@ -0,0 +1,11 @@
+--- ansi_colours-1.2.2/Cargo.toml	1970-01-01T00:00:01+00:00
++++ ansi_colours-1.2.2/Cargo.toml	2023-09-19T19:27:04.164433+00:00
+@@ -48,7 +48,7 @@
+ optional = true
+ 
+ [dependencies.termcolor]
+-version = ">= 1.0, <= 1.2"
++version = "1"
+ optional = true
+ 
+ [dev-dependencies.crc64]

rust-ansi_colours.spec

@@ -13,6 +13,9 @@ Summary:        True-colour ↔ ANSI terminal palette converter
 License:        LGPL-3.0-or-later
 URL:            https://crates.io/crates/ansi_colours
 Source:         %{crates_source}
+# Manually created patch for downstream crate metadata changes
+# * relax termcolor dependency to allow versions >= 1.2
+Patch:          ansi_colours-fix-metadata.diff
 
 BuildRequires:  rust-packaging >= 21