Update golang:latest Docker digest to 73f06be (#51)

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

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:c2d828fd49c47ed2b9192d2dbffed83052d8a21af465056d732c3de0d756f217 as builder
+FROM golang:latest@sha256:73f06be4578c9987ce560087e2e2ea6485fb605e3910542cadd8fa09fc5f3e31 as builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG BUILD_FLAGS=""