OIDC Permissions Fix

🔧 OIDC Authentication Fix

Added Missing IAM Permissions:

• iam:UpdateOpenIDConnectProviderThumbprint - Required for updating OIDC provider thumbprints
• iam:CreateOpenIDConnectProvider - For creating OIDC providers
• iam:DeleteOpenIDConnectProvider - For cleanup operations
• iam:GetOpenIDConnectProvider - For reading OIDC provider details
• iam:ListOpenIDConnectProviders - For listing providers

What This Fixes:

• GitHub Actions should now be able to update OIDC provider thumbprints
• Resolves AccessDenied errors during infrastructure deployment
• Enables full OIDC-based authentication workflow

Testing:
This release will test the complete GitHub Actions + OIDC authentication flow with all required permissions.