check_for_package_updates: sort output alphabetically by package name

Add alphabetical sorting to display results in a consistent order
regardless of processing sequence. Sort by package name before
formatting output for better user experience.

Changes:
- Sort results file by first field (package name) before display
- Update log message to include GitLab packages
- Apply sorting to all output formats (table, json, markdown)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: Adrian Reber <[email protected]>

Author: adrianreber

misc/check_for_package_updates.sh

@@ -759,10 +759,17 @@ process_spec_file() {
 # Format and display results
 display_results() {
 	if [[ ! -s "${RESULTS_FILE}" ]]; then
-		log_info "No GitHub-sourced packages found"
+		log_info "No GitHub or GitLab sourced packages found"
 		return 0
 	fi
 
+	# Sort results alphabetically by package name
+	local sorted_results
+	sorted_results="$(mktemp)"
+	sort -t'|' -k1,1 "${RESULTS_FILE}" >"${sorted_results}"
+	cp "${sorted_results}" "${RESULTS_FILE}"
+	rm -f "${sorted_results}"
+
 	case "${OUTPUT_FORMAT}" in
 	"table")
 		{