Publish OCSP snapshots through Redis

ocsp-responder/Cargo.toml

@@ -19,7 +19,6 @@ bytes = "1"
 async-trait = "0.1"
 base64 = "0.22"
 hex = "0.4"
-httpdate = "0.3"
 sha1 = "0.10"
 sha2 = "0.10"
 der = { version = "0.7", features = ["std"] }
@@ -31,14 +30,4 @@ ecdsa = { version = "0.16", features = ["der"] }
 pkcs8 = { version = "0.10", features = ["pem"] }
 x509-ocsp = { version = "0.2.1", features = ["builder", "std"] }
 x509-cert = { version = "0.2", features = ["std"] }
-aws-config = { version = "1", default-features = false, features = [
-    "behavior-version-latest",
-    "credentials-process",
-    "legacy-client",
-    "rt-tokio",
-] }
-aws-sdk-s3 = { version = "1", default-features = false, features = [
-    "http-1x",
-    "legacy-https-client",
-    "rt-tokio",
-] }
+redis = { version = "1", features = ["tokio-comp", "connection-manager", "script"] }