[BUG] Bug in the get_arch() function. It does not catch aarch64 as arm64 when creating the download link for the databricks CLI.

[SirMiAss]

Describe the bug
When installing brickflow on a arm64 linux machine the get_arch() used in the bundle_download_path() returns the wrong architecture string to build our download link.
It returns https://github.com/databricks/cli/releases/download/v0.210.2/databricks_cli_0.210.2_linux_aarch64.zip while it should be https://github.com/databricks/cli/releases/download/v0.210.2/databricks_cli_0.210.2_linux_arm64.zip

To Reproduce
Steps to reproduce the behavior:

1. Use a linux-arm64 environment.
2. Install brickflow

Expected behavior
get_arch() should catch aarch64 and return arm64.

Desktop (please complete the following information):

• OS: [Linux]
• Architecture [arm64]