feat(instrumentation-httpx): Add support for HTTP metrics (open-telemetry#3513)

* Add support for metrics

* Updated changelog

* Update package.py

* generate and lint

* Update

* Update

---------

Co-authored-by: Tammy Baylis <[email protected]>
Co-authored-by: Riccardo Magliocchetti <[email protected]>

Author: 3 people

CHANGELOG.md

@@ -60,8 +60,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#3012](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3012))
 
 ### Added
+
 - `opentelemetry-instrumentation-aiohttp-client` Add support for HTTP metrics
-  ([#3517](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3517))
+  ([#3517](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3517))  
+- `opentelemetry-instrumentation-httpx` Add support for HTTP metrics
+  ([#3513](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/3513))
 
 ### Deprecated
 

instrumentation/README.md

@@ -25,7 +25,7 @@
 | [opentelemetry-instrumentation-fastapi](./opentelemetry-instrumentation-fastapi) | fastapi ~= 0.92 | Yes | migration
 | [opentelemetry-instrumentation-flask](./opentelemetry-instrumentation-flask) | flask >= 1.0 | Yes | migration
 | [opentelemetry-instrumentation-grpc](./opentelemetry-instrumentation-grpc) | grpcio >= 1.42.0 | No | development
-| [opentelemetry-instrumentation-httpx](./opentelemetry-instrumentation-httpx) | httpx >= 0.18.0 | No | migration
+| [opentelemetry-instrumentation-httpx](./opentelemetry-instrumentation-httpx) | httpx >= 0.18.0 | Yes | migration
 | [opentelemetry-instrumentation-jinja2](./opentelemetry-instrumentation-jinja2) | jinja2 >= 2.7, < 4.0 | No | development
 | [opentelemetry-instrumentation-kafka-python](./opentelemetry-instrumentation-kafka-python) | kafka-python >= 2.0, < 3.0,kafka-python-ng >= 2.0, < 3.0 | No | development
 | [opentelemetry-instrumentation-logging](./opentelemetry-instrumentation-logging) | logging | No | development