DynamicTablesPkg.ci.yaml: Add debug macro exception

Adds a CI YAML entry to acknowledge a case where custom strings
contain print specifiers for a single debug macro.

Cc: Sami Mujawar <Sami.Mujawar@arm.com>
Cc: Alexei Fedorov <Alexei.Fedorov@arm.com>
Cc: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>

DynamicTablesPkg/DynamicTablesPkg.ci.yaml

@@ -130,5 +130,13 @@
                                      # should be ignore
         "AdditionalIncludePaths": [] # Additional paths to spell check
                                      # (wildcards supported)
+    },
+
+    "DebugMacroCheck": {
+      "StringSubstitutions": {
+          # DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c
+          # Reason: Debug format strings are dynamically set.
+          "Parser[Index].Format": "%d"
+      }
     }
 }