Update golang:latest Docker digest to 8131d99 (#169)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -1,6 +1,6 @@
 
 # Build a go app into a minimal docker image with timezone support and SSL cert chains.
-FROM golang:latest@sha256:d9db32125db0c3a680cfb7a1afcaefb89c898a075ec148fdc2f0f646cc2ed509 as builder
+FROM golang:latest@sha256:8131d99bd9bdf38a3b9720c23c3d21f40d65137d4b2fd2eccab20e7ab7b5dee4 as builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG BUILD_FLAGS=""