Upgrading dbt-vertica with dbt-core 1.4.4 version

1.4.4

Features:

• Added support for dbt-core version 1.4.0 according to DBT guidelines.
• Support for Python 3.11.

Fixes:

• Merge strategy config parameter merge_update_columns is now working as intended.
• The incremental flag --full-refresh is now working as intended.