chore(deps): update dependency go to v1.25.3 (#21)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| [go](https://go.dev/)
([source](https://redirect.github.com/golang/go)) | toolchain | patch |
`1.25.2` -> `1.25.3` | [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/golang/go/badge)](https://securityscorecards.dev/viewer/?uri=github.com/golang/go)
|

---

### Release Notes

<details>
<summary>golang/go (go)</summary>

###
[`v1.25.3`](https://redirect.github.com/golang/go/compare/go1.25.2...go1.25.3)

</details>

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go.mod

@@ -2,6 +2,6 @@ module go.expect.digital/cache
 
 go 1.23.0
 
-toolchain go1.25.2
+toolchain go1.25.3
 
 require golang.org/x/sync v0.16.0