I am uploading a NMU to DELAYED/10 in order to fix this.
The debdiff is attached.
diff -Nru cl-getopt-1.2.0/debian/changelog cl-getopt-1.2.0/debian/changelog
--- cl-getopt-1.2.0/debian/changelog 2023-10-03 20:43:21.000000000 +0200
+++ cl-getopt-1.2.0/debian/changelog 2023-10-03 20:39:16.000000000 +0200
@@ -1,3 +1,10 @@
+cl-getopt (1.2.0-3.3) unstable; urgency=medium
+
+ * Non-maintainer upload.
+ * Convert to source format 3.0 (Closes: #1043085).
+
+ -- Bastian Germann <b...@debian.org> Tue, 03 Oct 2023 20:39:16 +0200
+
cl-getopt (1.2.0-3.2) unstable; urgency=medium
* Non-maintainer upload.
diff -Nru cl-getopt-1.2.0/debian/source/format
cl-getopt-1.2.0/debian/source/format
--- cl-getopt-1.2.0/debian/source/format 1970-01-01 01:00:00.000000000
+0100
+++ cl-getopt-1.2.0/debian/source/format 2023-10-03 20:39:12.000000000
+0200
@@ -0,0 +1 @@
+3.0 (quilt)
