fix(ci): sed formatting of numeric values

Author: thekaveman

.github/workflows/time-reporting.yml

@@ -117,8 +117,8 @@ jobs:
           # Truncate the summary to exclude the per-person details.
           SUMMARY_TRUNCATED=$(echo "$SUMMARY_FULL" | awk 'BEGIN{RS=""; ORS="\n\n"} NR<=2')
 
-          # Format for Slack: add backticks to numbers and escape newlines for the JSON payload.
-          SUMMARY_SLACK=$(echo "$SUMMARY_TRUNCATED" | sed -E 's/: ([0-9.]+)/: `\1`/' | sed -z 's/\n/\\n/g')
+          # Format for Slack: add backticks to numbers at the end of a line and escape newlines.
+          SUMMARY_SLACK=$(echo "$SUMMARY_TRUNCATED" | sed -E 's/: ([0-9.]+)$/: `\1`/' | sed -z 's/\n/\\n/g')
 
           echo "summary=$SUMMARY_SLACK" >> $GITHUB_OUTPUT