Update golang Docker tag

renovate[bot] · web-flow · commit 146908041f2e · 2024-08-13T21:56:26.000Z
diff --git a/.tool-versions b/.tool-versions
@@ -1 +1 @@
-golang 1.18
+golang 1.23.0
diff --git a/Dockerfile b/Dockerfile
@@ -2,7 +2,7 @@
 ###############################
 # Build the doctree Go binary #
 ###############################
-FROM golang:1.18-alpine as builder
+FROM golang:1.23-alpine@sha256:eb37f58646a901dc7727cf448cae36daaefaba79de33b5058dab79aa4c04aefb as builder
 
 RUN apk add --no-cache git build-base
 COPY . /doctree
