Update Doxygen for 23.11

Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
Change-Id: I47cd933f5002cb94a73aa97689d7b3d9c93cb849
diff --git a/latest/_ref_debug_workload_8hpp.js b/latest/_ref_debug_workload_8hpp.js
index b0bbf32..b062214 100644
--- a/latest/_ref_debug_workload_8hpp.js
+++ b/latest/_ref_debug_workload_8hpp.js
@@ -8,5 +8,6 @@
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     [ "RefDebugQSymmS16Workload", "_ref_debug_workload_8hpp.html#ae6d1d064ec7d33b2cc5bcc8afafbe193", null ],
     [ "RefDebugQSymmS8Workload", "_ref_debug_workload_8hpp.html#ad607a96fafba334ba5bde946947dd0af", null ],
-    [ "RefDebugSigned32Workload", "_ref_debug_workload_8hpp.html#a2b2b0a60cbb51bf3eb9bd2899aee2c86", null ]
+    [ "RefDebugSigned32Workload", "_ref_debug_workload_8hpp.html#a2b2b0a60cbb51bf3eb9bd2899aee2c86", null ],
+    [ "RefDebugSigned64Workload", "_ref_debug_workload_8hpp.html#aa334d5e73d8b967640041307137e2d02", null ]
 ];
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