build(deps): update go toolchain directive to v1.27.3 (#13540)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [go](https://go.dev/)
([source](https://redirect.github.com/golang/go)) | toolchain | patch |
`1.27.2` → `1.27.3` |

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go.mod

@@ -6,7 +6,7 @@ module github.com/authelia/authelia/v4
 
 go 1.27.0
 
-toolchain go1.27.2
+toolchain go1.27.3
 
 require (
 	authelia.com/provider/oauth2 v0.3.3