Add PrestoConnection getProperties method to presto-jdbc

[imillan]

Introduce a method to access PrestoConnection properties at runtime.
The usecase behind this request is described in issue #16320

Addresses issue #16320

Test plan

• Run new test in TestJdbcConnection
• mvn clean install -rf :presto-jdbc
• Integration test used by loading the new driver and checking that method returns the properties used to open a presto connection

== RELEASE NOTES ==

JDBC changes
* Add method ``getConnectionProperties`` to PrestoConnection to allow for connection properties retrieval after a connection establishes. (:pr:`16329`)

[linux-foundation-easycla]

The committers are authorized under a signed CLA.

• ✅ Ivan Millan (a652554aeb9ef08a707bca0ff673f6250da2fef7)

[tdcmeehan]

Small nit. Also be sure to squash commits

[imillan]

@tdcmeehan I worked on the suggested nit and submitted a new request for review. thx

[ajaygeorge]

@imillan
Can you please format the Release notes as described by the guidelines here . The current one does not mention what type of change it is and has typos.

cc @tdcmeehan

[imillan]

@ajaygeorge
I reformatted the release notes. Let me know if something else is required.