[JAVA] JDBC note update.

[chernser]

Summary

Adds note to JDBC doc about differences in type info between v1 and v2

Checklist

• Delete items not relevant to your PR
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Note

Low Risk
Documentation-only change to the JDBC integration guide; no runtime or API code is modified.

Overview
The JDBC migration guide’s Database Metadata Changes section now documents a V1 vs V2 difference for DatabaseMetaData.getTypeInfo(): in V2, LITERAL_PREFIX and LITERAL_SUFFIX are null for types that should not use literal quoting (e.g. numeric types), whereas V1 returned non-null values. The note clarifies that tools generating SQL should rely on these columns when quoting literals by type.

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Project	Deployment	Actions	Updated (UTC)
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[mintlify]

Docs PR opened: ClickHouse/mintlify-docs-dev#228

Added a JDBC V2 note explaining that getTypeInfo now returns null for LITERAL_PREFIX and LITERAL_SUFFIX on numeric types.