[DOWNSTREAM TEST][PLATFORM]Test: Upgrade pulumi/{pkg,sdk} to 973c8d55c2db09e80ed840d06476745924cf55f7

[pulumi-bot]

This PR was generated via $ upgrade-provider pulumi/pulumi-azuread --kind=bridge --pr-reviewers=julienp --pr-title-prefix=[DOWNSTREAM TEST][PLATFORM] --target-pulumi-version=973c8d55c2db09e80ed840d06476745924cf55f7.

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This is a downstream codegen test for pulumi/pulumi#15957. (run-id: 8708532928)

[github-actions]

Does the PR have any schema changes?

Looking good! No breaking changes found.
No new resources/functions.

Maintainer note: consult the runbook for dealing with any breaking changes.

[github-actions]

Is README.md missing any configuration options?

clientCertificatePassword not found in Configuration section
clientIdFilePath not found in Configuration section
clientSecretFilePath not found in Configuration section
disableTerraformPartnerId not found in Configuration section
metadataHost not found in Configuration section
oidcRequestToken not found in Configuration section
oidcRequestUrl not found in Configuration section
oidcToken not found in Configuration section
oidcTokenFilePath not found in Configuration section
partnerId not found in Configuration section
useAksWorkloadIdentity not found in Configuration section
useCli not found in Configuration section
useOidc not found in Configuration section

Please add a description for each of these options to README.md. Details about them can be found in either the upstream docs or schema.json.