MON-323 fix pipeline using 0.4.0 terraform-docs version

bitbucket-pipelines.yml

@@ -7,8 +7,9 @@ pipelines:
         script:
           - apk update
           - apk upgrade
-          - apk add --no-cache bash git grep coreutils
-          - go get github.com/segmentio/terraform-docs
+          - apk add --no-cache bash git grep coreutils curl
+          - curl -Lo /usr/local/bin/terraform-docs "https://github.com/$(curl -s https://github.com/segmentio/terraform-docs/releases | grep terraform-docs-v0.4.0-linux-amd | head -n 1 | cut -d '"' -f 2)"
+          - chmod +x /usr/local/bin/terraform-docs
           - ./scripts/auto_update.sh
           - git status
           - git diff --exit-code