I am uploading a NMU to DELAYED/10 in order to fix this.
Please find the debdiff attached.
diff -Nru libgraphics-colornames-perl-3.5.0/debian/changelog
libgraphics-colornames-perl-3.5.0/debian/changelog
--- libgraphics-colornames-perl-3.5.0/debian/changelog 2024-02-21
13:14:57.000000000 +0000
+++ libgraphics-colornames-perl-3.5.0/debian/changelog 2024-02-21
13:11:52.000000000 +0000
@@ -1,3 +1,11 @@
+libgraphics-colornames-perl (3.5.0-3.1) unstable; urgency=medium
+
+ * Non-maintainer upload
+ * Convert to source format 3.0
+ (Closes: #1007573)
+
+ -- Bastian Germann <b...@debian.org> Wed, 21 Feb 2024 13:11:52 +0000
+
libgraphics-colornames-perl (3.5.0-3) unstable; urgency=medium
* The GCN::HTML and GCN::Windows schemes have been removed and released
diff -Nru libgraphics-colornames-perl-3.5.0/debian/source/format
libgraphics-colornames-perl-3.5.0/debian/source/format
--- libgraphics-colornames-perl-3.5.0/debian/source/format 2024-02-21
13:14:57.000000000 +0000
+++ libgraphics-colornames-perl-3.5.0/debian/source/format 2024-02-21
13:11:52.000000000 +0000
@@ -1 +1 @@
-1.0
+3.0 (quilt)
