Updating cdap version to 6.11 #1336

Job	Run time
build (mysql-plugin)	1h 18m 34s
build (postgresql-plugin)	47m 32s
build (oracle-plugin)	2h 17m 7s
build (mssql-plugin)	1h 17m 2s
build (cloudsql-mysql-plugin)	1h 54m 38s
build (cloudsql-postgresql-plugin)	51m 34s
	8h 26m 27s

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