Update Router-Postgres project files to match new build structure

Have to directly access the Database with sslmode disabled. Unlike
with Mongo, we cannot rely on replica sets so must create the database
dynamically on launch (if a database does not exist). This is done in
the makefile of Router-Postgres on that tool's branch.

projects/router-postgres/Makefile

@@ -1,4 +1,4 @@
 router-postgres: clone-router-postgres
-	$(GOVUK_DOCKER) pull postgres-14
-	$(GOVUK_DOCKER) run --rm -d postgres-14
+	$(GOVUK_DOCKER) up -d postgres-14
 	$(GOVUK_DOCKER) run $@-lite make build
+

projects/router-postgres/docker-compose.yml

@@ -12,17 +12,16 @@ x-router: &router-postgres
   working_dir: /go/src/github.com/alphagov/router-postgres
 
 services:
-  router-postgres-lite:
+  router-postgres-lite: &router-postgres-lite
     <<: *router-postgres
     depends_on:
       - postgres-14
     environment:
       GOFLAGS: -buildvcs=false
       BINARY: /go/src/github.com/alphagov/router-postgres/router-postgres
       DEBUG: "true"
-      DATABASE_URL: "postgresql://postgres@postgres-14/router"
-      TEST_DATABASE_URL: "postgresql://postgres@postgres-14/router"
-
+      DATABASE_URL: "postgresql://postgres@postgres-14/router?sslmode=disable"
+      TEST_DATABASE_URL: "postgresql://postgres@postgres-14/router-test?sslmode=disable"
 
   router-postgres-app: &router-postgres-app
     <<: *router-postgres
@@ -33,14 +32,14 @@ services:
       - "8080"
       - "3055"
     environment:
-      VIRTUAL_HOST: router.dev.gov.uk,www.dev.gov.uk,www-origin.dev.gov.uk
+      VIRTUAL_HOST: router-postgres.dev.gov.uk,www.dev.gov.uk,www-origin.dev.gov.uk
       VIRTUAL_PORT: 8080
-      DATABASE_URL: "postgresql://postgres@postgres-14/router"
+      DATABASE_URL: "postgresql://postgres@postgres-14/router?sslmode=disable"
       ROUTER_APIADDR: :3055
       ROUTER_BACKEND_HEADER_TIMEOUT: 60s
     command: ./router-postgres
 
-  router-postgres-app-draft:
+  router-postgres-app-draft: &router-postgres-app-draft
     <<: *router-postgres-app
     environment:
       VIRTUAL_HOST: draft-router.dev.gov.uk,draft-origin.dev.gov.uk