Only update FASP availability if it actually changed (#38818)

app/workers/fasp/base_worker.rb

@@ -10,10 +10,12 @@ class Fasp::BaseWorker
   def with_provider(provider)
     return unless provider.confirmed? && provider.available?
 
-    yield
-  rescue *Mastodon::HTTP_CONNECTION_ERRORS
-    raise if provider.available?
-  ensure
-    provider.update_availability!
+    begin
+      yield
+    rescue *Mastodon::HTTP_CONNECTION_ERRORS
+      raise if provider.available?
+    ensure
+      provider.update_availability!
+    end
   end
 end