fix(deps): update module golang.org/x/oauth2 to v0.36.0 (#30)

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [golang.org/x/oauth2](https://pkg.go.dev/golang.org/x/oauth2) | [`v0.35.0` → `v0.36.0`](https://cs.opensource.google/go/x/oauth2/+/refs/tags/v0.35.0...refs/tags/v0.36.0) | ![age](https://developer.mend.io/api/mc/badges/age/go/golang.org%2fx%2foauth2/v0.36.0?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/go/golang.org%2fx%2foauth2/v0.35.0/v0.36.0?slim=true) |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My41OS4zIiwidXBkYXRlZEluVmVyIjoiNDMuNTkuMyIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsidHlwZS9kZXBlbmRlbmNpZXMiXX0=-->

Reviewed-on: #30
Reviewed-by: Luke Tainton <luke@tainton.uk>
Co-authored-by: renovate[bot] <renovate-bot@git.tainton.uk>
Co-committed-by: renovate[bot] <renovate-bot@git.tainton.uk>

go.mod

@@ -1,6 +1,6 @@
 module shamilnunhuck/saml-oidc-bridge
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/beevik/etree v1.6.0
@@ -8,7 +8,7 @@ require (
 	github.com/crewjam/saml v0.5.1
 	github.com/fsnotify/fsnotify v1.9.0
 	github.com/russellhaering/goxmldsig v1.5.0
-	golang.org/x/oauth2 v0.35.0
+	golang.org/x/oauth2 v0.36.0
 	gopkg.in/yaml.v3 v3.0.1
 )