test: adjust valgrind case

tests/script/tsim/valgrind/basic1.sim

 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -33,7 +34,7 @@ sql drop dnode 2
 sql alter dnode 1 'debugflag 143'
 
 print =============== step4: create show database
-sql create database d1 vgroups 1
+sql create database d1 vgroups 1 buffer 3
 sql show databases
 sql use d1
 sql show vgroups

tests/script/tsim/valgrind/basic2.sim

 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -19,7 +20,7 @@ if $rows != 1 then
 endi
 
 print =============== step2: create db
-sql create database db vgroups 1
+sql create database db vgroups 1 buffer 3
 sql use db
 sql create table if not exists stb (ts timestamp, c1 int, c2 float, c3 double) tags (t1 int unsigned)
 

tests/script/tsim/valgrind/checkError1.sim

 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 

tests/script/tsim/valgrind/checkError2.sim

 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c debugflag -v 131
 system sh/exec.sh -n dnode1 -s start -v
 sql connect
 
@@ -19,7 +20,7 @@ if $rows != 1 then
 endi
 
 print =============== step2: create db
-sql create database d1 vgroups 1
+sql create database d1 vgroups 1 buffer 3
 sql show databases
 sql use d1
 sql show vgroups