github: future-proof wheel builds for py310

Author: mgorny

.github/workflows/release.yml

@@ -43,7 +43,7 @@ jobs:
       with:
         output-dir: dist
       env:
-        CIBW_BUILD: cp38-* cp39-*
+        CIBW_BUILD: cp38-* cp39-* cp310-*
         CIBW_ARCHS_LINUX: x86_64
         CIBW_MANYLINUX_X86_64_IMAGE: manylinux_2_24
         CIBW_BEFORE_BUILD: pip install -r {project}/requirements/dist.txt && {project}/.github/workflows/bash.sh