feat(duckdb-driver): Add support for installing and loading DuckDB Community Extensions #3435

Job	Run time
latest-tag-sha	18s
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 23s
build	6m 10s
tests (20.x, athena-export-bucket-s3)	4m 2s
tests (20.x, bigquery-export-bucket-gcs)	4m 1s
tests (20.x, clickhouse)	4m 7s
tests (20.x, clickhouse-export-bucket-s3)	4m 31s
tests (20.x, databricks-jdbc)	4m 28s
tests (20.x, databricks-jdbc-export-bucket-s3)	4m 6s
tests (20.x, databricks-jdbc-export-bucket-azure)	4m 41s
tests (20.x, mssql)	6m 46s
tests (20.x, mysql)	5m 12s
tests (20.x, postgres)	5m 5s
tests (20.x, redshift)	3m 59s
tests (20.x, redshift-export-bucket-s3)	4m 6s
tests (20.x, snowflake)	4m 28s
tests (20.x, snowflake-export-bucket-s3)	4m 5s
tests (20.x, snowflake-export-bucket-azure)	4m 32s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	4m 23s
tests (20.x, snowflake-export-bucket-gcs)	4m 0s
	1h 25m 23s

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