Use package-version as an input instead

GitHub Actions expressions are very limited in what you can do with them. The
default cannot reference another variable, and there is no way to do
manipulation or "if" clauses with them.

Author: asmeurer

.github/workflows/array-api-tests.yml

@@ -6,17 +6,13 @@ on:
       package-name:
         required: true
         type: string
-      pytest-extra-args:
-        required: false
-        type: string
-      xfails-file:
+      package-version:
         required: false
         type: string
-        default: '${{ inputs.package-name }}-xfails.txt'
-      skips-file:
+        default: '>= 0'
+      pytest-extra-args:
         required: false
         type: string
-        default: '${{ inputs.package-name }}-skips.txt'
 
 env:
   PYTEST_ARGS: "--max-examples 200 -v -rxXfE --ci ${{ inputs.pytest-extra-args }}"
@@ -50,7 +46,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install ${{ inputs.package-name }}
+        python -m pip install '${{ inputs.package-name }} ${{ inputs.package-version }}'
         python -m pip install -r ${GITHUB_WORKSPACE}/array-api-tests/requirements.txt
     - name: Run the array API testsuite (${{ inputs.package-name }})
       env:
@@ -61,4 +57,4 @@ jobs:
       run: |
         export PYTHONPATH="${GITHUB_WORKSPACE}/array-api-compat"
         cd ${GITHUB_WORKSPACE}/array-api-tests
-        pytest ${PYTEST_ARGS} --xfails-file ${GITHUB_WORKSPACE}/array-api-compat/${{ inputs.xfails-file }} --skips-file ${GITHUB_WORKSPACE}/array-api-compat/${{ inputs.skips-file }} array_api_tests/
+        pytest --xfails-file ${GITHUB_WORKSPACE}/array-api-compat/${{ inputs.package-name }}-xfails.txt --skips-file ${GITHUB_WORKSPACE}/array-api-compat/${{ inputs.package-name }}-skips.txt ${PYTEST_ARGS} array_api_tests/