Upgrade opentelemetry-proto to 0.20 and regen

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Add max_scale option to Exponential Bucket Histogram Aggregation [#3323](https://github.com/open-telemetry/opentelemetry-python/pull/3323))
 - Use BoundedAttributes instead of raw dict to extract attributes from LogRecord and Support dropped_attributes_count in LogRecord ([#3310](https://github.com/open-telemetry/opentelemetry-python/pull/3310))
+- Upgrade opentelemetry-proto to 0.20 and regen
+  [#3355](https://github.com/open-telemetry/opentelemetry-python/pull/3355))
 
 ## Version 1.18.0/0.39b0 (2023-05-04)
 

exporter/opentelemetry-exporter-otlp-proto-common/tests/test_metrics_encoder.py

@@ -451,7 +451,6 @@ def test_encode_histogram(self):
                                                 bucket_counts=[1, 4],
                                                 explicit_bounds=[10.0, 20.0],
                                                 exemplars=[],
-                                                flags=pb2.DataPointFlags.FLAG_NONE,
                                                 max=18.0,
                                                 min=8.0,
                                             )
@@ -554,7 +553,6 @@ def test_encode_multiple_scope_histogram(self):
                                                 bucket_counts=[1, 4],
                                                 explicit_bounds=[10.0, 20.0],
                                                 exemplars=[],
-                                                flags=pb2.DataPointFlags.FLAG_NONE,
                                                 max=18.0,
                                                 min=8.0,
                                             )
@@ -590,7 +588,6 @@ def test_encode_multiple_scope_histogram(self):
                                                 bucket_counts=[1, 4],
                                                 explicit_bounds=[10.0, 20.0],
                                                 exemplars=[],
-                                                flags=pb2.DataPointFlags.FLAG_NONE,
                                                 max=18.0,
                                                 min=8.0,
                                             )
@@ -633,7 +630,6 @@ def test_encode_multiple_scope_histogram(self):
                                                 bucket_counts=[1, 4],
                                                 explicit_bounds=[10.0, 20.0],
                                                 exemplars=[],
-                                                flags=pb2.DataPointFlags.FLAG_NONE,
                                                 max=18.0,
                                                 min=8.0,
                                             )
@@ -676,7 +672,6 @@ def test_encode_multiple_scope_histogram(self):
                                                 bucket_counts=[1, 4],
                                                 explicit_bounds=[10.0, 20.0],
                                                 exemplars=[],
-                                                flags=pb2.DataPointFlags.FLAG_NONE,
                                                 max=18.0,
                                                 min=8.0,
                                             )