Block upload of models with names with forbidden chars.
Right now users are allowed to onboard models with names which has unsupported chars in kuberentes:
Later on these models wont run becasue, kuberentes allow only 'a-z?' as service name:
Fix this in UI by blocking the onboadring if unsupported chars are given in the name.
More info: DNS-1035 label must consist of lower case alphanumeric characters or '-', start with an alphabetic character, and end with an alphanumeric character (e.g. 'my-name', or 'abc-123', regex used for validation is 'a-z?'