Use ServiceBinding data for APIRule jwt accessStrategies configuration

[gregorw]

Hello Kyma Experts,

when using the helm charts generated by CAP there is a ServiceBinding to XSUAA which is used via a 

volume mount of the service binding secretName. I would like to use this secrets also in the APIRule for a jwt accessStrategies configuration. In https://github.com/gregorwolf/cap-azure-ad-b2c/blob/main/kyma/deployment.yaml#L49 I did this manually with a static configuration of the trusted_issuers and jwks_urls. But I want to get the configuration be flexible so I do not need to adjust it between dev / qa and production.

Best Regards
Gregor