Revert "Try to parse with heredoc"

This reverts commit 5f016c1.

Author: sirbrillig

.github/workflows/csqa.yml

@@ -147,11 +147,7 @@ jobs:
       - name: Parse performance report
         id: parse_performance_report
         run: |
-          PHPCS_OUTPUT=$(cat <<-EOF
-          ${{ steps.performance_report.outputs.PHPCS_PERF_REPORT }}
-          EOF
-          )"
-          TOTAL_SECS=$(echo ${PHPCS_OUTPUT}| grep -Eo 'TOTAL SNIFF PROCESSING TIME[ ]+[0-9.]+'|awk '{ print $5 }')
+          TOTAL_SECS=$(echo ${{ steps.performance_report.outputs.PHPCS_PERF_REPORT }}| grep -Eo 'TOTAL SNIFF PROCESSING TIME[ ]+[0-9.]+'|awk '{ print $5 }')
           echo "Performance time was ${TOTAL_SECS} (max ${{ env.MAX_PHPCS_PERF_SECS }})"
           echo "PHPCS_PERF_SECS=${TOTAL_SECS}" >> $GITHUB_OUTPUT