Secrets: encryption encryption storage uses versioning (#108036)

* Secrets: delete unused FakeKeeper

* Secrets: encrypted value storage stores versions

* add version to span

* trigger build

* remove ineffectual assignment

* lint

* drop secret_encrypted_value.uid / add name and version columns

pkg/storage/secret/encryption/data/encrypted_value_delete.sql

@@ -1,4 +1,6 @@
 DELETE FROM {{ .Ident "secret_encrypted_value" }}
-WHERE {{ .Ident "namespace" }} = {{ .Arg .Namespace }} AND
-  {{ .Ident "uid" }}      = {{ .Arg .UID }}
+WHERE 
+  {{ .Ident "namespace" }} = {{ .Arg .Namespace }} AND
+  {{ .Ident "name" }}      = {{ .Arg .Name }} AND
+  {{ .Ident "version" }}   = {{ .Arg .Version }}
 ;