docker: Add full tar and openssh-client to support GitHub Actions

Closes #14502

diff --git a/Dockerfile b/Dockerfile
index 3ce707ec4d8f67cd42e9017904e2d5311c23c198..ee9f9cc55fc57e3bc9a62fb26f9facdaa6c006f4 100755 (executable)
--- a/Dockerfile
+++ b/Dockerfile
@@ -65,7 +65,9 @@ RUN apk add --no-cache \
     git \
     runuser \
     nodejs \
-    npm
+    npm \
+    openssh-client \
+    tar
 
 RUN mkdir -p /var/hugo/bin /cache && \
     addgroup -Sg 1000 hugo && \