feat(providers): Add Ping Identity provider (#6614)
* adding ping identity provider
* converted to typescript and also made requested changes from next-auth team
* Update documentation, use OIDCConfig
* Apply suggestions from code review
* Update ping-id.ts
* Create ping-id.svg
* Update ping-id.svg
* Update ping-id.svg
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Co-authored-by: Falco Winkler <8613031+falcowinkler@users.noreply.github.com>
Co-authored-by: Balázs Orbán <info@balazsorban.com>
