Minor typo fix for test fixtures (#1131)

Co-authored-by: Mike Alfare <[email protected]>

Author: ericj-db

dbt-tests-adapter/src/dbt/tests/adapter/simple_snapshot/fixtures.py

@@ -22,7 +22,7 @@
     -- snapshotting fields
     updated_at TIMESTAMP,
     test_valid_from TIMESTAMP,
-    TEST_VAILD_TO   TIMESTAMP,
+    TEST_VALID_TO   TIMESTAMP,
     test_scd_id     TEXT,
     test_updated_at TIMESTAMP
 );
@@ -100,7 +100,7 @@
     ip_address,
     updated_at,
     test_valid_from,
-    TEST_VAILD_TO,
+    TEST_VALID_TO,
     test_updated_at,
     test_scd_id
 )