Add Spiri.Bo to Sponsors

[hefekranz]

Hi, as discussed via mail :)

I'll send the brand icon via mail

Related issue

Proposed changes

Checklist

• I have read the contributing guidelines.
• [] I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security. vulnerability, I
  confirm that I got green light (please contact
  security@ory.sh) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

Further comments

[aeneasr]

Thanks! I merged it with another PR :)