Added Glue Catalog sync demo for Iceberg tables

[kesarwam]

No description provided.

[iddoavn]

We said we might want to change 2 things:

1. glue_database = "lakefs_demo_iceberg_glue_sync" - enough to put it once and use the same vairable.
2. Define the access ket / access and region as parameters. catalog = RestCatalog(
   name = "my_catalog",
   **{
   'prefix': 'lakefs',
   'uri': f'{lakefsEndPoint}/iceberg/api',
   'oauth2-server-uri': f'{lakefsEndPoint}/iceberg/api/v1/oauth/tokens',
   'credential': f'{lakefsAccessKey}:{lakefsSecretKey}',
   's3.access-key-id': 'XXX',
   's3.secret-access-key': 'XXX',
   's3.region': 'us-east-1'
   })