PYTHON-3008 Test Python 3.10 support (#36)

Author: juliusgeo

.github/workflows/release-python-osx.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-10.15]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.6, 3.7, 3.8, 3.9, "3.10"]
     name: Build CPython ${{ matrix.python-version }}-${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2

.github/workflows/test-python.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-20.04]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.6, 3.7, 3.8, 3.9, "3.10"]
     name: CPython ${{ matrix.python-version }}-${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2

bindings/python/requirements/build.txt

@@ -1,3 +1,3 @@
 setuptools>=47
 cython>=0.29
-pyarrow>=3,<3.1
+pyarrow>=6,<6.1

bindings/python/setup.py

@@ -16,7 +16,7 @@
 
 
 # Keep these dependencies synced with those in requirements/*.txt
-PYARROW_DEP = 'pyarrow>=3,<3.1'
+PYARROW_DEP = 'pyarrow>=6,<6.1'
 PYMONGO_DEP = 'pymongo>=3.11,<4'
 INSTALL_REQUIRES = [PYARROW_DEP, PYMONGO_DEP]
 SETUP_REQUIRES = ['setuptools>=47', 'cython>=0.29', PYARROW_DEP]