tools: edit create-release-proposal workflow to handle pr body length

PR-URL: #57841
Reviewed-By: Rafael Gonzaga <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>

Author: elvessilvavieira

tools/actions/create-release-proposal.sh

@@ -31,8 +31,9 @@ HEAD_SHA="$(git rev-parse HEAD^)"
 
 TITLE="$(git log -1 --format=%s)"
 
-# Use a temporary file for the PR body
-TEMP_BODY="$(awk "/## ${RELEASE_DATE}/,/^<a id=/{ if (!/^<a id=/) print }" "doc/changelogs/CHANGELOG_V${RELEASE_LINE}.md")"
+TEMP_BODY="$(awk -v MAX_BODY_LENGTH="65536" \
+    "/^## ${RELEASE_DATE}/,/^<a id=/{ if (/^<a id=/) {exit;} if ((output_length += length(\$0)) > MAX_BODY_LENGTH) {exit 1;} print }" \
+    "doc/changelogs/CHANGELOG_V${RELEASE_LINE}.md" || echo "…")"
 
 # Create the proposal branch
 gh api \