make CI matrix smaller

We're getting 429's from github now in CI. There's no real need to test
against 1.14.1 or python 3.8 as people mostly don't use these any more.
Let's drop them.

Signed-off-by: Tycho Andersen <tycho@tycho.pizza>

.github/workflows/ci.yaml

@@ -13,8 +13,8 @@ jobs:
         strategy:
             fail-fast: false
             matrix:
-                python-version: [3.8, 3.9, "3.10", "3.11", "pypy3.9"]
-                xcbver: [xcb-proto-1.14.1, xcb-proto-1.15.2, xcb-proto-1.16.0, master]
+                python-version: [3.9, "3.10", "3.11", "pypy3.9"]
+                xcbver: [xcb-proto-1.15.2, xcb-proto-1.16.0, master]
         steps:
             - uses: actions/checkout@v3
             - name: Set up python "${{ matrix.python-version }}"