New service connection object with workloadidentity

[rajithaalurims]

Description

As part of Security Wave1 changes, we are eliminating service principals that are using passwords. I have created a new service connection object that connects to resources in subscription using workload identity federation Auth scheme

Related issues

Addresses AB#120094

Testing

PR and CI pipelines

FHIR Team Checklist

• Update the title of the PR to be succinct and less than 65 characters
• Add a milestone to the PR for the sprint that it is merged (i.e. add S47)
• Tag the PR with the type of update: Bug, Build, Dependencies, Enhancement, New-Feature or Documentation
• Tag the PR with Open source, Azure API for FHIR (CosmosDB or common code) or Azure Healthcare APIs (SQL or common code) to specify where this change is intended to be released.
• Tag the PR with Schema Version backward compatible or Schema Version backward incompatible or Schema Version unchanged if this adds or updates Sql script which is/is not backward compatible with the code.
• CI is green before merge
• Review squash-merge requirements

Semver Change (docs)

Patch|Skip|Feature|Breaking (reason)

[rajithaalurims]

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[rajithaalurims]

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[rajithaalurims]

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