catch exceptions as const

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Id4f88568c2897ab1117dcad647783a9127c0600d
diff --git a/dump_serialize.cpp b/dump_serialize.cpp
index 427cf57..0104b83 100644
--- a/dump_serialize.cpp
+++ b/dump_serialize.cpp
@@ -37,7 +37,7 @@
         }
         return false;
     }
-    catch (cereal::Exception& e)
+    catch (const cereal::Exception& e)
     {
         log<level::ERR>(
             fmt::format("Failed to deserialize, errormsg({})", e.what())