fix: mention summary comment in validation error (#7497)

Mention ENABLE_GITHUB_PULL_REQUEST_SUMMARY_COMMENT in the error message
that checks for GITHUB_TOKEN.

Fix #7483

Author: ferrarimarco

Dockerfile

@@ -11,7 +11,7 @@ FROM alpine/terragrunt:1.14.4 AS terragrunt
 FROM dotenvlinter/dotenv-linter:4.0.0 AS dotenv-linter
 FROM ghcr.io/terraform-linters/tflint:v0.60.0 AS tflint
 FROM alpine/helm:4.1.0 AS helm
-FROM golang:1.26rc3-alpine AS golang
+FROM golang:1.25.6-alpine AS golang
 FROM golangci/golangci-lint:v2.8.0 AS golangci-lint
 FROM goreleaser/goreleaser:v2.13.3 AS goreleaser
 FROM hadolint/hadolint:v2.14.0-alpine AS dockerfile-lint

lib/linter.sh

@@ -409,7 +409,7 @@ GetGitHubVars() {
     fi
 
     if [ -z "${GITHUB_TOKEN:-}" ]; then
-      fatal "Failed to get [GITHUB_TOKEN]. Terminating because status reports were explicitly enabled, but GITHUB_TOKEN was not provided."
+      fatal "Failed to get GITHUB_TOKEN. Terminating because status reports (MULTI_STATUS: ${MULTI_STATUS}) or pull request summary comments (ENABLE_GITHUB_PULL_REQUEST_SUMMARY_COMMENT: ${ENABLE_GITHUB_PULL_REQUEST_SUMMARY_COMMENT}) were explicitly enabled, but GITHUB_TOKEN was not provided."
     else
       info "Successfully found GITHUB_TOKEN."
     fi