pin adapters to last 3.9 python support in dev-requirements (#12138)

Author: MichelleArk

dev-requirements.txt

@@ -1,8 +1,10 @@
-git+https://github.com/dbt-labs/dbt-adapters.git@main#subdirectory=dbt-adapters
-git+https://github.com/dbt-labs/dbt-adapters.git@main#subdirectory=dbt-tests-adapter
+git+https://github.com/dbt-labs/dbt-postgres.git@main
 # Pinning to 1.34.latest to maintain Python 3.9 compatibility
 git+https://github.com/dbt-labs/dbt-common.git@1.34.latest
-git+https://github.com/dbt-labs/dbt-adapters.git@main#subdirectory=dbt-postgres
+# Last adapters patch that supports Python 3.9
+dbt-adapters==1.17.3
+dbt-tests-adapter==1.19.1
+
 # black must match what's in .pre-commit-config.yaml to be sure local env matches CI
 black==24.3.0
 bumpversion