Reset call depth counter if query is blocked

dd-java-agent/instrumentation/jdbc/src/main/java/datadog/trace/instrumentation/jdbc/StatementInstrumentation.java

@@ -120,6 +120,7 @@ public static AgentScope onEnter(
         // if we can't get the connection for any reason
         return null;
       } catch (BlockingException e) {
+        CallDepthThreadLocalMap.reset(Statement.class);
         // re-throw blocking exceptions
         throw e;
       } catch (Throwable e) {