py: add 3.10 builds

.github/workflows/python.yml

@@ -59,6 +59,11 @@ jobs:
             python: "3.9"
             piparch: macosx_10_9_intel
 
+          - name: osx 3.10 intel
+            os: macos-latest
+            python: "3.10"
+            piparch: macosx_10_10_intel
+
           # Windows py builds
 
           ## missing Microsoft Visual C++ 9.0
@@ -91,6 +96,11 @@ jobs:
             python: "3.9"
             piparch: win_amd64
 
+          - name: win64 3.10
+            os: windows-latest
+            python: "3.10"
+            piparch: win_amd64
+
     steps:
       - uses: actions/checkout@v2
         with:
@@ -213,6 +223,12 @@ jobs:
             manylinux: manylinux2010
             arch: x86_64
 
+          - name: linux 3.10 amd64
+            os: ubuntu-latest
+            pyver: cp310-cp310
+            manylinux: manylinux2014
+            arch: x86_64
+
           # Linux py builds x32
           - name: linux 2.7 i686
             pyver: cp27-cp27m