Bump golang from 1.17.5 to 1.17.6 (#1079)

Bumps golang from 1.17.5 to 1.17.6.

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

Signed-off-by: dependabot[bot] <support@github.com>

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.17.5 AS build
+FROM golang:1.17.6 AS build
 WORKDIR /go/src/github.com/aquasecurity/kube-bench/
 COPY makefile makefile
 COPY go.mod go.sum ./