dev: add make notebook

[kevinjqliu]

Rationale for this change

Add 2 new Make command (make notebook) to spin up a jupyter notebook; make notebook-infra spins up jupyter notebook along with integration test infrastructure.

Pyiceberg Example Notebook

Pyiceberg example notebook (notebooks/pyiceberg_example.ipynb) is based on the https://py.iceberg.apache.org/#getting-started-with-pyiceberg page and doesn't require additional test infra.

Spark Example Notebook

Spark integration example notebook (notebooks/spark_integration_example.ipynb) is based on https://iceberg.apache.org/docs/nightly/spark-getting-started/ and requires integration test infrastructure (Spark, IRC, S3)

With spark connect (#2491) and our testing setup, we can quickly spin up a local env with make test-integration-exec which includes:

• spark
• iceberg rest catalog
• hive metastore
• minio

In the jupyter notebook, connect to spark easily

from pyspark.sql import SparkSession

# Create SparkSession against the remote Spark Connect server
spark = SparkSession.builder.remote("sc://localhost:15002").getOrCreate()
spark.sql("SHOW CATALOGS").show()

Are these changes tested?

Yes, run both make notebook and make notebook-infra locally and run the example notebooks

Are there any user-facing changes?