Revert to python 3.13, remove gcc dependency

Author: fdxmw

.github/workflows/python-test.yml

@@ -14,7 +14,7 @@ jobs:
       with:
         enable-cache: true
     - name: Install apt dependencies
-      run: sudo apt install -y gcc yosys
+      run: sudo apt install -y yosys
     - name: Run all tests
       run: uv run just tests
     - name: Upload coverage to Codecov

.python-version

@@ -1 +1 @@
-3.14
+3.13