Add terraform state registry (#36710)

Adds terraform/opentofu state registry with locking. Implements: https://github.com/go-gitea/gitea/issues/33644. I also checked [encrypted state](https://opentofu.org/docs/language/state/encryption), it works out of the box.

Docs PR: https://gitea.com/gitea/docs/pulls/357

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Co-authored-by: Andras Elso <elso.andras@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

templates/package/shared/view.tmpl

@@ -33,6 +33,7 @@
 		{{template "package/content/rpm" .}}
 		{{template "package/content/rubygems" .}}
 		{{template "package/content/swift" .}}
+		{{template "package/content/terraform" .}}
 		{{template "package/content/vagrant" .}}
 	</div>
 	<div class="ui segment packages-content-right">
@@ -64,6 +65,7 @@
 			{{template "package/metadata/rpm" .}}
 			{{template "package/metadata/rubygems" .}}
 			{{template "package/metadata/swift" .}}
+			{{template "package/metadata/terraform" .}}
 			{{template "package/metadata/vagrant" .}}
 			{{if not (and (eq .PackageDescriptor.Package.Type "container") .PackageDescriptor.Metadata.Manifests)}}
 			<div class="item">{{svg "octicon-database"}} {{FileSize .PackageDescriptor.CalculateBlobSize}}</div>