chore: rename apcore checkout path and update spec repository environment variable

Author: tercel

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         repository: aiperceivable/apcore
-        path: ../apcore
+        path: .apcore-spec
 
     - name: Set up Python
       uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
@@ -52,5 +52,7 @@ jobs:
         ruff check src/ tests/
 
     - name: Run tests
+      env:
+        APCORE_SPEC_REPO: ${{ github.workspace }}/.apcore-spec
       run: |
         pytest