fix: Update min coverage to 97%

Author: mike-oakley

.github/workflows/smokeshow.yml

@@ -52,7 +52,7 @@ jobs:
           done
         env:
           SMOKESHOW_GITHUB_STATUS_DESCRIPTION: Coverage {coverage-percentage}
-          SMOKESHOW_GITHUB_COVERAGE_THRESHOLD: 87
+          SMOKESHOW_GITHUB_COVERAGE_THRESHOLD: 97
           SMOKESHOW_GITHUB_CONTEXT: coverage
           SMOKESHOW_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SMOKESHOW_GITHUB_PR_HEAD_SHA: ${{ github.event.workflow_run.head_sha }}