Bump helm-diff version to 3.12.4

Signed-off-by: yxxhero <[email protected]>

Author: yxxhero

README.md

@@ -373,7 +373,7 @@ Bump `version` in `plugin.yaml`:
 
 ```
 $ code plugin.yaml
-$ git commit -m 'Bump helm-diff version to 3.x.y'
+$ git commit -s -m 'Bump helm-diff version to 3.x.y'
 ```
 
 Set `GITHUB_TOKEN` and run:

plugin.yaml

@@ -1,7 +1,7 @@
 name: "diff"
 # Version is the version of Helm plus the number of official builds for this
 # plugin
-version: "3.12.3"
+version: "3.12.4"
 usage: "Preview helm upgrade changes as a diff"
 description: "Preview helm upgrade changes as a diff"
 useTunnel: true