fix: use fixed version of postgres for local development

Resolves an issue which caused local Postgres instances to fail to start, due to Postgres 18 changes to how it handles PGDATA.

Author: jyecusch

pkg/cloud/sql/sql.go

@@ -136,7 +136,7 @@ func (l *LocalSqlServer) start() error {
 		return err
 	}
 
-	err = dockerClient.ImagePull("postgres:latest", types.ImagePullOptions{
+	err = dockerClient.ImagePull("postgres:17.6", types.ImagePullOptions{
 		All: false,
 	})
 	if err != nil {
@@ -164,7 +164,7 @@ func (l *LocalSqlServer) start() error {
 	_ = newLis.Close()
 
 	l.containerId, err = dockerClient.ContainerCreate(&container.Config{
-		Image: "postgres",
+		Image: "postgres:17.6",
 		Env: []string{
 			"POSTGRES_PASSWORD=localsecret",
 			"PGDATA=/var/lib/postgresql/data/pgdata",