💾 Update Version (Stirling-Tools#1755)

💾 Sync Versions
> Made via sync_files.yml

Co-authored-by: GitHub Action action@github.com <GitHub Action action@github.com>

chart/stirling-pdf/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: 0.28.2
+appVersion: 0.28.3
 description: locally hosted web application that allows you to perform various operations
   on PDF files
 home: https://github.com/Stirling-Tools/Stirling-PDF