add edit role functionality

Azaion.Services/UserService.cs

@@ -16,6 +16,7 @@ public interface IUserService
     Task UpdateQueueOffsets(string email, UserQueueOffsets queueOffsets, CancellationToken ct = default);
     Task<IEnumerable<User>> GetUsers(string? searchEmail, RoleEnum? searchRole, CancellationToken ct = default);
     Task<string> CheckHardwareHash(User user, string hardware, CancellationToken ct = default);
+    Task ChangeRole(string email, RoleEnum newRole, CancellationToken ct = default);
     Task SetEnableStatus(string email, bool isEnabled, CancellationToken ct = default);
     Task RemoveUser(string email, CancellationToken ct = default);
 }
@@ -131,6 +132,15 @@ public class UserService(IDbFactory dbFactory, ICache cache) : IUserService
             }, ct));
     }
 
+    public async Task ChangeRole(string email, RoleEnum newRole, CancellationToken ct = default)
+    {
+        await dbFactory.RunAdmin(async db =>
+            await db.Users.UpdateAsync(x => x.Email == email, u => new User
+            {
+                Role = newRole
+            }, ct));
+    }
+
     public async Task SetEnableStatus(string email, bool isEnabled, CancellationToken ct = default)
     {
         await dbFactory.RunAdmin(async db =>