[core] pinned python version for publishing

Author: MrClock8163

.github/workflows/python-publish.yml

@@ -16,7 +16,7 @@ jobs:
 
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: "3.13"
 
       - name: Build release distributions
         run: |

.github/workflows/python-test-publish.yml

@@ -17,7 +17,7 @@ jobs:
 
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: "3.13"
 
       - name: Build release distributions
         run: |