Make building of static kittens the last step in CI

It is the least likely to fail and also the longest to execute

.github/workflows/ci.yml

@@ -104,9 +104,6 @@ jobs:
           - name: Build kitty
             run: python setup.py build --debug
 
-          - name: Build static kitten
-            run: python setup.py build-static-binaries
-
           - name: Run mypy
             run: which python && python -m mypy --version && ./test.py mypy
 
@@ -119,6 +116,9 @@ jobs:
           - name: Build HTML docs
             run: make FAIL_WARN=1 html
 
+          - name: Build static kittens
+            run: python setup.py build-static-binaries
+
     bundle:
         name: Bundle test (${{ matrix.os }})
         runs-on: ${{ matrix.os }}