Martin Dzíbela

add kubernetes data

1

Partialy implements https://github.com/elastic/apm-agent-php/issues/64. Adds [metadata.system.kubernetes](https://github.com/elastic/apm-server/blob/7.0/docs/spec/system.json#L31) filled via environment variables (using Downward API).

allow to authenticate to Azure Storage using SAS tokens

2

Related to https://github.com/kedacore/keda/pull/5382. Add support to use Shared Access Signature (SAS) authentication in Azure Storage Queue scaler. ### Checklist - [x] Commits are signed with Developer Certificate of Origin (DCO)