Add retention policy for cached content and media (#19232)

app/lib/vacuum/access_tokens_vacuum.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Vacuum::AccessTokensVacuum
+  def perform
+    vacuum_revoked_access_tokens!
+    vacuum_revoked_access_grants!
+  end
+
+  private
+
+  def vacuum_revoked_access_tokens!
+    Doorkeeper::AccessToken.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+  end
+
+  def vacuum_revoked_access_grants!
+    Doorkeeper::AccessGrant.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+  end
+end