[Feat]: Add a demo of SpringBoot #84

Job	Run time
basic (mybatis-plus, java, false) / ci	1m 42s
basic (go-sql-driver, golang, true) / ci	1m 38s
basic (mysql-connector-java, java, true) / ci	1m 28s
basic (mysql-connector-python, python, true) / ci	1m 24s
basic (oceanbase-client, java, true) / ci	1m 38s
basic (springboot, java, true) / ci	1m 48s
basic (pymysql, python, true) / ci	1m 23s
basic (testcontainers-java, java, false) / ci	1m 38s
	12m 39s

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