Update alpine Docker tag to v3.20.3

Dockerfile

@@ -23,7 +23,7 @@ RUN <<EOF
     go build -v -o ./terramaid main.go
 EOF
 
-FROM alpine:3.20.2
+FROM alpine:3.20.3
 COPY --from=builder /usr/src/terramaid/terraform /usr/local/bin/terraform
 COPY --from=builder /usr/src/terramaid/terramaid /usr/local/bin/terramaid