[FLINK-37739][cli] fix flink-conf is not obtained in local mode#4006

MOBIN-F wants to merge 2 commits intoapache:masterapache/flink-cdc:masterfrom

MOBIN-F:release-local-mode-failure-get-flinkConfMOBIN-F/flink-cdc:release-local-mode-failure-get-flinkConfCopy head branch name to clipboard