simply just use the key to v29 like other PRs

Author: Lingling Peng

.github/workflows/build.yml

@@ -84,7 +84,7 @@ jobs:
           path: |
             ${{ steps.get-dependencies.outputs.site_packages_loc }}
             ${{ steps.get-dependencies.outputs.site_bin_dir }}
-          key: ${{ runner.os }}-${{ matrix.python }}-build-${{ env.cache-name }}-${{ hashFiles('setup.py', 'setup.cfg') }}-v28
+          key: ${{ runner.os }}-${{ matrix.python }}-build-${{ env.cache-name }}-${{ hashFiles('setup.py') }}-v29
 
       - name: Install py-dependencies
         if: steps.cache-dependencies.outputs.cache-hit != 'true'