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/testdata/sqlite--encrypted_value_read-read.sql

@@ -1,11 +1,14 @@
 SELECT
-  "uid",
   "namespace",
+  "name",
+  "version",
   "encrypted_data",
   "created",
   "updated"
 FROM
   "secret_encrypted_value"
-WHERE "namespace" = 'ns' AND
-  "uid" = 'abc123'
+WHERE 
+  "namespace" = 'ns' AND
+  "name" = 'n1' AND
+  "version" = 1
 ;