[bug] azure package is deprecated

[eyalzo]

Describe the bug
The azure package is deprecated. Need to install individual packages instead.

To Reproduce
Steps to reproduce the behavior (please include the full Skyplane command you ran):

1. Run 'pip install azure'
2. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
% pip install azure
Collecting azure
Downloading azure-5.0.0.zip (4.6 kB)
Preparing metadata (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [25 lines of output]
Traceback (most recent call last):
File "", line 2, in
File "", line 34, in
File "/private/var/folders/72/tm0y9z7s5ps7czwbhk3b3rwm0000gn/T/pip-install-9bbpxnbf/azure_e8b7dcef3e364884b5509ff05e7da165/setup.py", line 60, in
raise RuntimeError(message)
RuntimeError:

  Starting with v5.0.0, the 'azure' meta-package is deprecated and cannot be installed anymore.
  Please install the service specific packages prefixed by `azure` needed for your application.
  
  The complete list of available packages can be found at:
  https://aka.ms/azsdk/python/all
  
  Here's a non-exhaustive list of common packages:
  
  -  azure-mgmt-compute (https://pypi.python.org/pypi/azure-mgmt-compute) : Management of Virtual Machines, etc.
  -  azure-mgmt-storage (https://pypi.python.org/pypi/azure-mgmt-storage) : Management of storage accounts.
  -  azure-mgmt-resource (https://pypi.python.org/pypi/azure-mgmt-resource) : Generic package about Azure Resource Management (ARM)
  -  azure-keyvault-secrets (https://pypi.python.org/pypi/azure-keyvault-secrets) : Access to secrets in Key Vault
  -  azure-storage-blob (https://pypi.python.org/pypi/azure-storage-blob) : Access to blobs in storage accounts
  
  A more comprehensive discussion of the rationale for this decision can be found in the following issue:
  https://github.com/Azure/azure-sdk-for-python/issues/10646

Transfer client log

None.

Environment info (please complete the following information):

• OS: Mac OS
• Python version: 3.11.2
• Skyplane version : 0.3.2

Additional context

Needed only when using Azure.

[eyalzo]

Note that this fix is not enough - 2aab284
This is because the same should be fixed in the main README.