PEP 420 namespace support, widen otel upper bound

- Widen opentelemetry-semantic-conventions upper bound from <0.60 to <0.61
- Add "Additional packages" section to README for mistralai-* namespace packages

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Nelson-PROIA

README.md

@@ -118,7 +118,7 @@ Once that is saved to a file, you can run it with `uv run script.py` where
 
 ### Agents extra dependencies
 
-When using the agents related feature it is required to add the `agents` extra dependencies. This can be added when 
+When using the agents related feature it is required to add the `agents` extra dependencies. This can be added when
 installing the package:
 
 ```bash
@@ -127,6 +127,14 @@ pip install "mistralai[agents]"
 
 > Note: These features require Python 3.10+ (the SDK minimum).
 
+### Additional packages
+
+Additional `mistralai-*` packages (e.g. `mistralai-workflows`) can be installed separately and are available under the `mistralai` namespace:
+
+```bash
+pip install mistralai-workflows
+```
+
 <!-- Start SDK Example Usage [usage] -->
 ## SDK Example Usage
 
@@ -410,7 +418,7 @@ gcloud auth application-default login
 Install the extras dependencies specific to Google Cloud:
 
 ```bash
-pip install mistralai[gcp]
+pip install "mistralai[gcp]"
 ```
 
 **Step 2: Example Usage**

pyproject.toml

@@ -16,7 +16,7 @@ dependencies = [
     "opentelemetry-sdk (>=1.33.1,<2.0.0)",
     "opentelemetry-api (>=1.33.1,<2.0.0)",
     "opentelemetry-exporter-otlp-proto-http (>=1.37.0,<2.0.0)",
-    "opentelemetry-semantic-conventions (>=0.59b0,<0.60)",
+    "opentelemetry-semantic-conventions (>=0.59b0,<0.61)",
 ]
 
 [project.optional-dependencies]