build: update Dockerfile-python-pg.

Author: liqiang-fit2cloud

installer/Dockerfile-python-pg

@@ -8,6 +8,7 @@ ARG DEPENDENCIES="                    \
         ca-certificates               \
         vim                           \
         gettext                       \
+        wait-for-it                   \
         redis-server                  \
         postgresql-17-pgvector        \
         postgresql-17-age"

installer/start-postgres.sh

@@ -4,4 +4,4 @@ mkdir -p /opt/maxkb/data/postgresql
 echo "PostgreSQL starting..."
 docker-entrypoint.sh postgres -c max_connections=${POSTGRES_MAX_CONNECTIONS} &
 sleep 10
-/usr/bin/wait-for-it.sh 127.0.0.1:5432 --timeout=120 --strict -- echo "PostgreSQL started."
+wait-for-it 127.0.0.1:5432 --timeout=120 --strict -- echo "PostgreSQL started."

installer/start-redis.sh

@@ -10,4 +10,4 @@ fi
 echo "Redis starting..."
 redis-server /opt/maxkb/conf/redis.conf &
 sleep 5
-/usr/bin/wait-for-it.sh 127.0.0.1:6379 --timeout=60 --strict -- echo "Redis started."
+wait-for-it 127.0.0.1:6379 --timeout=60 --strict -- echo "Redis started."