feat(duckdb): Bake in `spatial` and `excel` extensions#36

m1so merged 5 commits intomaindeepnote/deepnote-toolkit:mainfrom

michalbaumgartner/blu-5180-bake-in-duckdb-extensions-to-not-load-them-from-internetdeepnote/deepnote-toolkit:michalbaumgartner/blu-5180-bake-in-duckdb-extensions-to-not-load-them-from-internetCopy head branch name to clipboard