Add additional roles and role validations

[ArturSelitskiy-sm]

Pull Request type

• Bugfix
• Feature
• Refactoring (no functional changes, no api changes)
• Build related changes
• WHOSUSING.md
• Other (please describe):

NOTE: Please remember to run ./gradlew spotlessApply to fix any format violations.

Changes in this PR

• Added all supported roles to UpsertUserRequest and UpsertGroupRequest.
• User validation now blocks app: IDs and enforces USER_READ_ONLY exclusivity.
• Group validation keeps USER_READ_ONLY isolated and checks defaultAccess keys via RoleValidation.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 37 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...onductor/client/http/OrkesAuthorizationClient.java	0.00%	27 Missing ⚠️
...io/orkes/conductor/client/util/RoleValidation.java	0.00%	10 Missing ⚠️

Files with missing lines	Coverage Δ	Complexity Δ
...io/orkes/conductor/client/util/RoleValidation.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...onductor/client/http/OrkesAuthorizationClient.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)

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