Bump minimum dbt-adpaters to 1.8.0

In #10859 we started using the
`get_adapter_run_info` method provided by `dbt-adapters`. However that
function is only available in dbt-adapters >= 1.8.0. Thus 1.8.0 is our
new minimum for dbt-adapters.

core/setup.py

@@ -72,7 +72,7 @@
         "dbt-semantic-interfaces>=0.7.3,<0.8",
         # Minor versions for these are expected to be backwards-compatible
         "dbt-common>=1.11.0,<2.0",
-        "dbt-adapters>=1.7.0,<2.0",
+        "dbt-adapters>=1.8.0,<2.0",
         # ----
         # Expect compatibility with all new versions of these packages, so lower bounds only.
         "packaging>20.9",