Use version tag instead of main to download TFT

This will avoid old firmware downloading latest TFT from `main`, as it will instead download it from the tag related to the release.
It will fail with users running testing versions, like v4.2.5dev`, which could be a good thing.

advanced/esphome/nspanel_esphome_addon_upload_tft.yaml

@@ -1222,10 +1222,10 @@ select:
     name: ${name} Update TFT display - Branch
     platform: template
     options:
-      - "main"
+      - "v${version}"
       - "beta"
       - "dev"
-    initial_option: "main"
+    initial_option: "v${version}"
     optimistic: true
     restore_value: true
     internal: true