add dbt-core~=1.8.0a1 as convenience dep

setup.py

@@ -65,6 +65,8 @@ def _plugin_version_trim() -> str:
         # dbt-redshift depends deeply on this package. it does not follow SemVer, therefore there have been breaking changes in previous patch releases
         # Pin to the patch or minor version, and bump in each new minor version of dbt-redshift.
         "redshift-connector<2.0.918,>=2.0.913,!=2.0.914",
+        # add dbt-core to ensure backwards compatibility of installation, this is not a functional dependency
+        "dbt-core>=1.8.0a1",
         # installed via dbt-core but referenced directly; don't pin to avoid version conflicts with dbt-core
         "sqlparse>=0.2.3,<0.5",
         "agate",