Update docker Docker tag to v20.10.21

renovate[bot] · web-flow · commit 1a5e933331c0 · 2022-10-26T02:37:54.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker:20.10.17
+FROM docker:20.10.21
 
 LABEL tag="ackee-gitlab" \
       author="Ackee 🦄" \
