Remove redundant explicit inheritance from object per review comment.

Author: michaelsafyan

opentelemetry-instrumentation/src/opentelemetry/instrumentation/_blobupload/README.md

@@ -40,7 +40,7 @@ class ResponseHook(abc.ABC):
     pass
 
 
-class FooInstrumentationLibrary(object):
+class FooInstrumentationLibrary:
 
   def __init__(self,
      # ...,

opentelemetry-instrumentation/src/opentelemetry/instrumentation/_blobupload/api/blob.py

@@ -19,7 +19,7 @@
 from typing import Mapping, Dict, Optional
 
 
-class Blob(object):
+class Blob:
     """Represents an opaque binary object and associated metadata.
 
     This object conteptually has the following properties:

opentelemetry-instrumentation/src/opentelemetry/instrumentation/_blobupload/api/content_type.py

@@ -18,7 +18,7 @@
 
 # Helper used to handle the possibility of optional 'magic' dependency
 # being unavailable for guessing the MIME type of raw bytes.
-class _FallBackModule(object):
+class _FallBackModule:
     """Class that is shaped like the portion of 'magic' we need."""
 
     def from_buffer(self, raw_bytes, mime=True):

opentelemetry-instrumentation/src/opentelemetry/instrumentation/_blobupload/utils/simple_blob_uploader_adaptor.py

@@ -47,7 +47,7 @@ def _with_content_type(blob: Blob) -> Blob:
     return Blob(blob.raw_bytes, content_type=content_type, labels=blob.labels)
 
 
-class _UploadAction(object):
+class _UploadAction:
     """Represents the work to be done in the background to upload a blob."""
 
     def __init__(self, simple_uploader, uri, blob):