fix(github-release): update release mailu/mailu ( 2024.06.47 ➔ 2024.06.48 ) (#553)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

charts/mailu/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 # renovate: datasource=github-releases depName=Mailu/mailu
-appVersion: 2024.06.47
+appVersion: 2024.06.48
 version: 2.6.3
 name: mailu
 description: This chart installs the Mailu mail system on Kubernetes