Added update step to update pg_hba.conf postgresql/tasks

roles/postgresql/tasks/main.yml

@@ -21,7 +21,15 @@
     regexp: ^#listen_addresses = 'localhost'
     line: listen_addresses='*'
   become: true
-# TODO: Copy over template `pg_hba.conf` to `/etc/postgresql/12/main/pg_hba.conf`
+- name: Update `pg_hba.conf`
+  community.postgresql.postgresql_pg_hba:
+    dest: /etc/postgresql/12/main/pg_hba.conf
+    contype: host
+    users: postgres
+    source: 192.168.56.0/24
+    method: md5
+    create: true
+  become: true
 - name: Create new test-database
   become_user: postgres
   become: yes