Teku 26.10.3 strips compromised certificate roots from Docker images

• —Docker images drop trust in emSign ECC Root CA-G3, emSign Root CA-G1, emSign Root CA-G2 and AAA Certificate Services
• —Only HTTPS connections are affected: external signers, remote beacon or execution endpoints, builders
• —Peer-to-peer networking does not use certificate authorities and is outside the exposure
• —No exploitation reported; wallet spending keys and validator signing keys are not automatically compromised