[SKY-269] [bug] `pip install azure` deprecated

[sarahwooders]

Our installation instructions says pip install azure for Azure, however this throws the following error:

  Downloading azure-5.0.0.zip (4.6 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [36 lines of output]
      Traceback (most recent call last):
        File "/home/sarahwooders/skyplane-fork/skyplane/env/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/home/sarahwooders/skyplane-fork/skyplane/env/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
        File "/home/sarahwooders/skyplane-fork/skyplane/env/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 118, in get_requires_for_build_wheel
          return hook(config_settings)
        File "/tmp/pip-build-env-_zzorlsf/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 341, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=['wheel'])
        File "/tmp/pip-build-env-_zzorlsf/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 323, in _get_build_requires
          self.run_setup()
        File "/tmp/pip-build-env-_zzorlsf/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 487, in run_setup
          super(_BuildMetaLegacyBackend,
        File "/tmp/pip-build-env-_zzorlsf/overlay/lib/python3.10/site-packages/setuptools/build_meta.py", line 338, in run_setup
          exec(code, locals())
        File "<string>", line 60, in <module>
      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

      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

This should be changed to

pip install azure-cli 

_SKY-269