Update golang Docker tag

renovate[bot] · web-flow · commit 379dddfd50c7 · 2024-08-06T18:16:14.000Z
diff --git a/.tool-versions b/.tool-versions
@@ -1 +1 @@
-golang 1.18
+golang 1.22.6
diff --git a/Dockerfile b/Dockerfile
@@ -2,7 +2,7 @@
 ###############################
 # Build the doctree Go binary #
 ###############################
-FROM golang:1.18-alpine as builder
+FROM golang:1.22-alpine@sha256:0d3653dd6f35159ec6e3d10263a42372f6f194c3dea0b35235d72aabde86486e as builder
 
 RUN apk add --no-cache git build-base
 COPY . /doctree
