Integration tests for removing the scope validation config for federated token sharing feature

[indeewari]

Removing the configurations of allowed scope validation at federated token sharing flow.

This should be integrated once following PRs are merged and version bumped.

• https://github.com/wso2-extensions/identity-outbound-auth-oidc/pull/179
• https://github.com/wso2/identity-apps/pull/5969

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