No longer setup pip in post and add new inputs

Author: MatteoH2O1999

action.yml

@@ -39,6 +39,10 @@ inputs:
   freethreaded:
     description: "When 'true', use the freethreaded version of Python."
     default: false
+  pip-version:
+    description: "Used to specify the version of pip to install with the Python. Supported format: major[.minor][.patch]."
+  pip-install:
+    description: "Used to specify the packages to install with pip after setting up Python. Can be a requirements file or package names."
 outputs:
   python-version:
     description: "The installed Python or PyPy version. Useful when given a version range as input."
@@ -75,8 +79,5 @@ runs:
         cache-dependency-path: ${{ inputs.cache-dependency-path }}
         update-environment: ${{ inputs.update-environment }}
         freethreaded: ${{ steps.build.outputs.freethreaded }}
-    - run: ${{ github.action_path }}/setup_pip.ps1
-      shell: pwsh
-      env:
-        PYTHON_VERSION: ${{ steps.setup.outputs.python-version }}
-        SETUP_PYTHON_PATH: ${{ steps.setup.outputs.python-path }}
+        pip-version: ${{ inputs.pip-version }}
+        pip-install: ${{ inputs.pip-install }}