feat: [Connectivity] Improve Certificate Rotation with ZTIS for OAuth2TokenService#1142

Jonas-Isr merged 3 commits intomainSAP/cloud-sdk-java:mainfrom

fix/oauth2-rotate-ztis-certificates-in-placeSAP/cloud-sdk-java:fix/oauth2-rotate-ztis-certificates-in-placeCopy head branch name to clipboard