🌱 Bump the docker-images group with 1 update (#1322)

Bumps the docker-images group with 1 update: golang.


Updates `golang` from 1.21.5 to 1.21.6

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: docker-images
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -22,7 +22,7 @@
 #           -e GITHUB_REPOSITORY="ossf/scorecard" \
 #           laurentsimon/scorecard-action:latest
 
-FROM golang:1.21.5@sha256:672a2286da3ee7a854c3e0a56e0838918d0dbb1c18652992930293312de898a6 AS builder
+FROM golang:1.21.6@sha256:6fbd2d3398db924f8d708cf6e94bd3a436bb468195daa6a96e80504e0a9615f2 AS builder
 WORKDIR /src
 ENV CGO_ENABLED=0
 COPY go.* ./