Guangdong Liu

> Please merge the dev branch to your branch and push again because #3022 Done.

merge #3031. fix the e2e error. @EricJoy2048 help to rerun CI,and i need the common part of the jdbc e2e for gbase 8a,thanks

please assigned to me.thanks @TyrantLucifer

please expain the second and third point,thanks. `Support setting parallelism as 1` means force setting parallelism as 1 like ` if (seaTunnelSink.getPluginName().equals("Assert")){ stream.getExecutionEnvironment().setParallelism(1); } `  I was going to...

i will resolve the second point in another pr.

PTAL @ic4y @EricJoy2048 @CalvinKirs thanks.

> PTAL @ic4y @EricJoy2048 @CalvinKirs thanks. e2e test pass 

PTAL @CalvinKirs @TyrantLucifer @EricJoy2048 .thanks

@Hisoka-X @ashulin @TyrantLucifer @ic4y change `/tmp/spark/seatunnel/` to `/tmp/seatunnel/` PTAL ,thanks.

@TyrantLucifer please rerun the CI.