Update local Docker setup to match current requirements

Upgrade PostgreSQL and add pg_trgm extension to the local Docker setup.

docker/postgres/Dockerfile

@@ -1,7 +1,7 @@
-FROM postgres:10
+FROM postgres:14
 
 RUN apt-get update && apt-get install --no-install-recommends -y \
-        postgis postgresql-10-postgis-2.5 postgresql-10-postgis-2.5-scripts
+        postgis postgresql-14-postgis-3 postgresql-14-postgis-3-scripts
 
 RUN localedef -i fi_FI -c -f UTF-8 -A /usr/share/locale/locale.alias fi_FI.UTF-8
 

docker/postgres/docker-entrypoint.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 set -e
 
-for ext in postgis hstore; do
+for ext in postgis hstore pg_trgm; do
     create_ext_sql="CREATE EXTENSION IF NOT EXISTS $ext"
     # Add the extensions to the default db template so that any
     # new db will have the extensions enabled includin test db.