MDEV-36345: Add Leak Sanitizer suppression for _dl_catch_exception

This showed up when executing under ASAN(includes LSAN) the
tests in the following order:
* plugins.show_all_plugins
* plugins.simple_password_check
* plugins.sql_error_log
* plugins.two_password_validations
* roles.acl_load_mutex-5170

Or an "INSTALL PLUGIN" (existing or not), followed by "SHUTDOWN"
as exhibited in MDEV-35772.

Given the common depth of stack the internal glibc symbol
was chosen based on its exception naming and the
msan libunwind bug llvm/llvm-project#84348
that maybe is going into ASAN resolving too.

Author: grooverdan

mysql-test/lsan.supp

@@ -1,5 +1,9 @@
 # LSAN (Asan leaks) suppressions
 
+# MDEV-36345 Memleak on shutdown in acl_load_mutex test
+# MDEV-35772 LSAN: LeakSanitizer: detected memory leaks in operator new
+leak:_dl_catch_exception
+
 # Leaks found by main.tls_version1
 leak:gnutls_certificate_allocate_credentials
 leak:gnutls_x509_trust_list_init