fix: properly re-throw caught exception in eager connection code (#550)

To preserve the original stack trace, one needs to use a throw;
statement, not re-throw the original exception. See https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/statements/exception-handling-statements

src/Momento.Sdk/CacheClient.cs

@@ -55,10 +55,10 @@ public static async Task<ICacheClient> CreateAsync(IConfiguration config, ICrede
         {
             await cacheClient.DataClient.EagerConnectAsync(eagerConnectionTimeout);
         }
-        catch (Exception e)
+        catch (Exception)
         {
             cacheClient.Dispose();
-            throw e;
+            throw;
         }
         return cacheClient;
     }