update libpq-dev dependency to 13.18-0+deb11u1 (#1420)

* use dynamic schema in test_grant_access_to.py

* use dynamic schema in test_grant_access_to.py

* revert setup

* update libpq-dev dependency to 13.18-0+deb11u1

Author: colin-rogers-dbt

docker/Dockerfile

@@ -9,7 +9,7 @@ RUN apt-get update \
     build-essential=12.9 \
     ca-certificates=20210119 \
     git=1:2.30.2-1+deb11u2 \
-    libpq-dev=13.14-0+deb11u1 \
+    libpq-dev=13.18-0+deb11u1 \
     make=4.3-4.1 \
     openssh-client=1:8.4p1-5+deb11u3 \
     software-properties-common=0.96.20.2-2.1 \