chore(deps): update dependency gabm/satty to v0.15.0

Author: renovate[bot]

home/.chezmoiexternal.toml.tmpl

@@ -50,7 +50,7 @@
     refreshPeriod = "168h"
 
 # renovate: datasource=github-releases depName=gabm/Satty
-{{ $sattyVersion := "v0.14.0" -}}
+{{ $sattyVersion := "v0.15.0" -}}
 
 [".local/bin/satty"]
     type = "archive-file"