[PLUGIN-1829] Add CloudSQLMySQLErrorDetailsProvider #1136

Job	Run time
build (mysql-plugin)	59m 49s
build (postgresql-plugin)	32m 25s
build (oracle-plugin)	2h 3m 39s
build (mssql-plugin)	1h 16m 59s
build (cloudsql-mysql-plugin)	55m 27s
build (cloudsql-postgresql-plugin)	6m 30s
	5h 54m 49s

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