PKG-262 hetzner: retry downloading GO binary for 3 times

Author: vorsel

packaging/scripts/mongodb-backup_builder.sh

@@ -141,7 +141,11 @@ install_golang() {
     elif [ x"$ARCH" = "xaarch64" ]; then
         GO_ARCH="arm64"
     fi
-    wget https://go.dev/dl/go1.22.8.linux-${GO_ARCH}.tar.gz -O /tmp/go1.22.tar.gz
+    for i in {1..3}; do
+        wget https://go.dev/dl/go1.22.8.linux-${GO_ARCH}.tar.gz -O /tmp/go1.22.tar.gz && break
+        echo "Failed to download GOLang, retrying in 10 seconds..."
+        sleep 10
+    done
     tar --transform=s,go,go1.22, -zxf /tmp/go1.22.tar.gz
     rm -rf /usr/local/go*
     mv go1.22 /usr/local/