use rfc8707 for requesting aud

CHANGELOG.md

config/example-config.yaml

internal/config/config.go

internal/endpoints/token/access/accessTokenEndpoint.go

internal/model/version/VERSION

internal/oidc/authcode/authcode.go

internal/oidc/oidcreqres/request.go

internal/oidc/refresh/refresh.go

internal/server/web/static/img/mytoken-grey.png

internal/server/web/static/img/mytoken.png

mytoken.png