diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/collate.icu.utf8.out /tmp/cirrus-ci-build/src/bin/pg_upgrade/tmp_check/results/collate.icu.utf8.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/collate.icu.utf8.out	2024-07-26 23:04:21.598599821 +0000
+++ /tmp/cirrus-ci-build/src/bin/pg_upgrade/tmp_check/results/collate.icu.utf8.out	2024-07-26 23:09:38.751370604 +0000
@@ -1930,14 +1930,14 @@
 SELECT U&'cb\0061\0308' LIKE U&'c%%\00E4' COLLATE ignore_accents;
  ?column? 
 ----------
- t
+ f
 (1 row)
 
 -- trailing _ matches two codepoints that form one char:
 SELECT U&'cb\0061\0308' LIKE U&'cb_' COLLATE ignore_accents;
  ?column? 
 ----------
- t
+ f
 (1 row)
 
 -- trailing __ matches two codepoints that form one char:
@@ -1951,14 +1951,14 @@
 SELECT U&'\0061\0308bc' LIKE U&'%\00E4bc' COLLATE ignore_accents;
  ?column? 
 ----------
- t
+ f
 (1 row)
 
 -- leading % matches zero (with later %):
 SELECT U&'\0061\0308bc' LIKE U&'%\00E4%c' COLLATE ignore_accents;
  ?column? 
 ----------
- t
+ f
 (1 row)
 
 -- trailing % matches zero: