Upgrade outline-ss-server to 1.2.1

src/shadowbox/docker/Dockerfile

@@ -39,7 +39,7 @@ FROM ${NODE_IMAGE}
 # Save metadata on the software versions we are using.
 LABEL shadowbox.node_version=12.16.3
 # Keep in sync with version in third_party/outline-ss-server
-LABEL shadowbox.outline-ss-server_version=1.2.0
+LABEL shadowbox.outline-ss-server_version=1.2.1
 
 ARG GITHUB_RELEASE
 LABEL shadowbox.github.release="${GITHUB_RELEASE}"

third_party/outline-ss-server/METADATA

@@ -8,9 +8,9 @@ third_party {
   }
   url {
     type: ARCHIVE
-    value: "https://github.com/Jigsaw-Code/outline-ss-server/releases/tag/v1.2.0"
+    value: "https://github.com/Jigsaw-Code/outline-ss-server/releases/tag/v1.2.1"
   }
   // Keep in sync with the Dockerfile label
-  version: "1.2.0"
+  version: "1.2.1"
   last_upgrade_date { year: 2020 month: 8 day: 28 }
 }