OpenSSF Best Practices badge

[nimbinatus]

Achieve the Open Source Security Foundation (OpenSSF) Best Practices passing badge.

Relevant links:

• https://github.com/ossf/best-practices-badge#summary-of-best-practices-criteria-passing-level
• https://www.bestpractices.dev/en (use the big "Get Your Badge Now!" button)

[cgwalters]

I think this is fixed by bootc-dev/bootc#1244 (although not across all the repos)