🌱 Update Update Golang Dependencies group

| datasource | package             | from    | to      |
| ---------- | ------------------- | ------- | ------- |
| go         | golang.org/x/mod    | v0.16.0 | v0.19.0 |
| go         | golang.org/x/oauth2 | v0.18.0 | v0.21.0 |
| go         | helm.sh/helm/v3     | v3.14.4 | v3.15.2 |

Author: cluster-stack-bot[bot]

go.mod

@@ -7,11 +7,11 @@ require (
 	github.com/google/go-github/v56 v56.0.0
 	github.com/spf13/cobra v1.8.0
 	github.com/valyala/fasttemplate v1.2.2
-	golang.org/x/mod v0.16.0
-	golang.org/x/oauth2 v0.18.0
+	golang.org/x/mod v0.19.0
+	golang.org/x/oauth2 v0.21.0
 	gopkg.in/src-d/go-git.v4 v4.13.1
 	gopkg.in/yaml.v3 v3.0.1
-	helm.sh/helm/v3 v3.14.4
+	helm.sh/helm/v3 v3.15.2
 )
 
 require (