Changes

Change tiflow CI to build sync_diff_inspector from source (#3316)

Change the CI of pull_dm_integration_test and
pull_engine_integration_test that are not covered by previous PR
https://github.com/PingCAP-QE/ci/pull/3315.

Related retest:
-
[pull_engine_integration_test](https://do.pingcap.net/jenkins/job/pingcap/job/tiflow/job/pull_engine_integration_test/3336/)
-
[pull_dm_integration_test](https://do.pingcap.net/jenkins/job/pingcap/job/tiflow/job/pull_dm_integration_test/3934/)
 (commit: 8da7d5f)