fix(deps): update module code.gitea.io/sdk/gitea to v0.16.0 (#16)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| code.gitea.io/sdk/gitea | require | minor | `v0.15.1` -> `v0.16.0` |

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Reviewed-on: https://gitea.com/gitea/terraform-provider-gitea/pulls/16
Co-authored-by: Renovate Bot <renovate-bot@gitea.com>
Co-committed-by: Renovate Bot <renovate-bot@gitea.com>

go.mod

@@ -3,7 +3,7 @@ module code.gitea.io/terraform-provider-gitea
 go 1.21
 
 require (
-	code.gitea.io/sdk/gitea v0.15.1
+	code.gitea.io/sdk/gitea v0.16.0
 	github.com/hashicorp/terraform-plugin-docs v0.16.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.27.0
@@ -19,7 +19,9 @@ require (
 	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/bgentry/speakeasy v0.1.0 // indirect
 	github.com/cloudflare/circl v1.3.3 // indirect
+	github.com/davidmz/go-pageant v1.0.2 // indirect
 	github.com/fatih/color v1.13.0 // indirect
+	github.com/go-fed/httpsig v1.1.0 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/google/uuid v1.3.0 // indirect