Avoid install types-requests at run-time

Author: edgarrmondragon

.github/workflows/ci.yml

@@ -50,7 +50,7 @@ jobs:
 
     - name: MyPy
       run: |
-        python -m pip install mypy
+        python -m pip install -e .[typing]
         mypy snowplow_tracker --exclude '/test'
       
     - name: Demo

setup.py

@@ -66,7 +66,12 @@
     ],
     install_requires=[
         "requests>=2.25.1,<3.0",
-        "types-requests>=2.25.1,<3.0",
         "typing_extensions>=3.7.4",
     ],
+    extras_require={
+        "typing": [
+            "mypy>=0.971",
+            "types-requests>=2.25.1,<3.0",
+        ],
+    },
 )