1804 - Upgrade Oracle Database version to the latest 23ai version

[loiclefevre]

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This PR provides the support for Oracle Database 23ai:

• Uses the latest JDBC driver 23.4.0.24.05
• Uses the latest RD2BC version 1.2.0
• Uses the latest Oracle Database 23ai Free Docker image
• Uses the freepdb1 database moving forward along default test user (from Testcontainers OracleContainer)

[schauder]

Thanks, that's merged.