fix(docs): remove duplicate default_pool_size setting in edge-worker …

…guide

Removed the redundant `default_pool_size` configuration line to avoid confusion and ensure clarity i
n the environment preparation documentation.

pkgs/pgflow.dev/src/content/docs/edge-worker/prepare-environment.mdx

@@ -70,7 +70,6 @@ If not, see Supabase's [installation guide](https://supabase.com/docs/guides/cli
     + pool_mode = "session"
       # How many server connections to allow per user/database pair.
       default_pool_size = 20
-      default_pool_size = 100
       # Maximum number of client connections allowed.
       max_client_conn = 100
     ```