add dep on dbt_config & and update protocol

dbt/adapters/contracts/connection.py

@@ -19,6 +19,8 @@
     ValidatedStringMixin,
     dbtClassMixin,
 )
+from dbt_config.external_config import ExternalCatalogConfig
+
 
 # TODO: this is a very bad dependency - shared global state
 from dbt_common.events.contextvars import get_node_info
@@ -226,3 +228,4 @@ class AdapterRequiredConfig(HasCredentials, Protocol):
     cli_vars: Dict[str, Any]
     target_path: str
     log_cache_events: bool
+    catalogs = Optional[ExternalCatalogConfig]

pyproject.toml

@@ -25,6 +25,7 @@ classifiers = [
 ]
 dependencies = [
     "dbt-common>=1.10,<2.0",
+    "dbt-config>=0.1,<1.0",
     "pytz>=2015.7",
     # installed via dbt-common but used directly
     "agate>=1.0,<2.0",
@@ -54,6 +55,7 @@ include = ["dbt/adapters", "dbt/include", "dbt/__init__.py"]
 
 [tool.hatch.envs.default]
 dependencies = [
+    "dbt-config @ git+https://github.com/dbt-labs/dbt-common.git@feature/externalCatalogConfig#subdirectory=config",
     "dbt_common @ git+https://github.com/dbt-labs/dbt-common.git",
     'pre-commit==3.7.0;python_version>="3.9"',
     'pre-commit==3.5.0;python_version=="3.8"',