feat(duckdb-driver): Add support for installing and loading DuckDB Community Extensions #3429

Job	Run time
latest-tag-sha	19s
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 32s
build	6m 4s
tests (20.x, athena-export-bucket-s3)	4m 15s
tests (20.x, bigquery-export-bucket-gcs)	4m 11s
tests (20.x, clickhouse)	4m 30s
tests (20.x, clickhouse-export-bucket-s3)	3m 59s
tests (20.x, databricks-jdbc)	4m 40s
tests (20.x, databricks-jdbc-export-bucket-s3)	4m 2s
tests (20.x, databricks-jdbc-export-bucket-azure)	4m 33s
tests (20.x, mssql)	5m 41s
tests (20.x, mysql)	5m 14s
tests (20.x, postgres)	5m 6s
tests (20.x, redshift)	4m 43s
tests (20.x, redshift-export-bucket-s3)	4m 45s
tests (20.x, snowflake)	4m 39s
tests (20.x, snowflake-export-bucket-s3)	4m 3s
tests (20.x, snowflake-export-bucket-azure)	4m 12s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	4m 12s
tests (20.x, snowflake-export-bucket-gcs)	4m 7s
	1h 25m 47s

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