deps: update azure/login action to v1.6.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
azure/login	action	minor	v1.4.7 -> v1.6.1

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Release Notes

azure/login (azure/login)

v1.6.1: Azure Login Action v1.6.1

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• Fix #​403: Do not break the workflow if az is not installed in pre and post steps

v1.6.0: Azure Login Action v1.6.0

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• Added pre: and post: action for cleaning up (#​384)

v1.5.1: Azure Login Action v1.5.1

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• Fixed #​371: Allow optional subscriptionId in creds (#​373)
• Cleaned accounts before login (#​376, #​377)
• Updated actions-secret-parser from 1.0.2 to 1.0.4 (#​378)

v1.5.0: Azure Login Action v1.5.0

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• Updated the versions of dependencies.
• Supported passwords to start with hyphen(-).
• Enabled OIDC for sovereign clouds.
• Supported Managed Identity Login.

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