CVE-2026-81871 OpenTelemetry-Go: Log gRPC exporter ignores env TLS certs, bypassing mTLS/pinning

OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.21.0, the exporters/otlp/otlplog/otlploggrpc package loads OTELEXPORTEROTLPLOGSCERTIFICATE, OTELEXPORTEROTLPCERTIFICATE, and related client certificate environment variables through loadEnvTLS into cfg.tlsCfg, but...