Need to change alphanumeric characters to next character
Use a numbers table to split your string and a case statement to figure out what the values your characters should have and for xml path to rebuild the string.

Put the logic in a function so it can be reused for multiple columns.

create function dbo.SS(@S varchar(max))
returns table as return
(
  select
  (
    select case
            when S.C = '9' then '0'
            when S.C = 'Z' then 'A'
            when S.C like '[A-Z,0-9]' then char(ascii(S.C) + 1)
            else S.C -- Keep not A-Z,0-9 as is
          end  
    from Number as N
      cross apply (select substring(@S, N.N, 1)) as S(C )
    where N.N between 1 and len(@S)
    for xml path(''), type
  ).value('text()[1]', 'varchar(max)') as C
)


This would be your update statement.

update YourTable
set Name = (select C from dbo.CC(Name)),
    [Passport No.] = (select C from dbo.CC([Passport No.]))