Publish OCSP snapshots through Redis

ocsp-responder/Dockerfile

@@ -2,9 +2,9 @@
 # Standalone Rust/Axum OCSP responder.
 #
 # The final image is scratch: the binary is a statically linked musl
-# executable and the only file besides it is the CA bundle needed for
-# outbound HTTPS to S3. Configuration, CA certificates and delegated signer
-# material are mounted at runtime.
+# executable and the only file besides it is the CA bundle needed for TLS
+# connections. Configuration, CA certificates and delegated signer material
+# are mounted at runtime.
 
 FROM rust:1-alpine AS builder