Change sed search string for plan output

entrypoint.sh

@@ -184,7 +184,7 @@ if [[ $COMMAND == 'plan' ]]; then
   # Actions: Strip out the refresh section, ignore everything after the 72 dashes, format, colourise and build PR comment.
   if [[ $EXIT_CODE -eq 0 || $EXIT_CODE -eq 2 ]]; then
     CLEAN_PLAN=$(echo "$INPUT" | sed -r '/^(An execution plan has been generated and is shown below.|Terraform used the selected providers to generate the following execution|No changes. Infrastructure is up-to-date.)$/,$!d') # Strip refresh section
-    CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -nr '/[-─]{72}/q;p') # Ignore everything after the 72 dashes/box-chars (happens when saving a plan to file)
+    CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -r '/Plan: /q') # Ignore everything after plan summary
     CLEAN_PLAN=${CLEAN_PLAN::65300} # GitHub has a 65535-char comment limit - truncate plan, leaving space for comment wrapper
     CLEAN_PLAN=$(echo "$CLEAN_PLAN" | sed -r 's/^([[:blank:]]*)([-+~])/\2\1/g') # Move any diff characters to start of line
     if [[ $COLOURISE == 'true' ]]; then