replace Jackson to Gson

[zhicwu]

Replace Jackson with Gson for below reasons:

• Gson is smaller and faster
• JPMS support starts with JDK 9 but Jackson requires JDK 11
  Now the shaded JDBC driver jar file is ~2.5MB, while in 0.3.1 it's ~3.7MB.

Some more changes:

• removed class ru.yandex.clickhouse.util.apache.StringUtils
• replaced Jackson with Gson and removed below classes:
  • ru.yandex.clickhouse.Jackson -> use com.clickhouse.client.data.JsonStreamUtils instead
  • ru.yandex.clickhouse.response.ArrayToStringDeserializer

[github-actions]

Benchmark                           (client)  (connection)  (statement)   Mode  Cnt    Score     Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc         reuse       normal  thrpt   20  267.668 ±  33.428  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc         reuse     prepared  thrpt   20  269.233 ±  34.156  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc           new       normal  thrpt   20  268.239 ±  39.659  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc           new     prepared  thrpt   20  268.737 ±  27.469  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc         reuse       normal  thrpt   20  888.627 ±  92.238  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc         reuse     prepared  thrpt   20  903.096 ±  95.256  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc           new       normal  thrpt   20  853.087 ± 129.386  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc           new     prepared  thrpt   20  877.444 ± 125.358  ops/s