Fix link OIDC Certification image

[raman-nbg]

Related issue(s)

none

Checklist

• I have read the contributing guidelines.
• I have referenced an issue containing the design document if my change
  introduces a new feature.
• I am following the
  contributing code 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

none

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[codecov]

Codecov Report

Merging #3124 (066e0cb) into master (9bc59be) will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3124      +/-   ##
==========================================
+ Coverage   79.35%   79.40%   +0.04%     
==========================================
  Files         112      112              
  Lines        7885     7879       -6     
==========================================
- Hits         6257     6256       -1     
+ Misses       1224     1221       -3     
+ Partials      404      402       -2     

Impacted Files	Coverage Δ
cmd/clients.go	100.00% <0.00%> (ø)
persistence/sql/persister_oauth2.go	81.85% <0.00%> (+0.84%)	⬆️
cmd/cli/handler_helper.go	59.70% <0.00%> (+2.55%)	⬆️

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