fix: remove deprecated arg from celery instrumentation (#3437) (#3445)

(cherry picked from commit 5eaf9cd)

Co-authored-by: Munir Abdinur <[email protected]>

Author: mergify[bot]

ddtrace/contrib/celery/app.py

@@ -4,7 +4,6 @@
 from ddtrace import config
 from ddtrace.pin import _DD_PIN_NAME
 
-from .constants import APP
 from .signals import trace_after_publish
 from .signals import trace_before_publish
 from .signals import trace_failure
@@ -24,7 +23,6 @@ def patch_app(app, pin=None):
     # attach the PIN object
     pin = pin or Pin(
         service=config.celery["worker_service_name"],
-        app=APP,
         _config=config.celery,
     )
     pin.onto(app)

releasenotes/notes/remove-app-arg-from-celery-instrumentation-4742d04f4e6474d2.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    Remove Pin.app deprecation warning from celery instrumentation.