ENH: Add Python 3.10 Linux builds

The updated image also requires sudo permission for the auditwheel
install. Use the cp39 over cp37 install for auditwheel.

Author: thewtex

scripts/internal/manylinux-build-common.sh

@@ -16,7 +16,7 @@ if [[ $# -eq 0 ]]; then
   PYBIN=(/opt/python/*/bin)
   PYBINARIES=()
   for version in "${PYBIN[@]}"; do
-    if [[ ${version} == *"cp37"* || ${version} == *"cp38"* || ${version} == *"cp39"* ]]; then
+    if [[ ${version} == *"cp37"* || ${version} == *"cp38"* || ${version} == *"cp39"* || ${version} == *"cp310"* ]]; then
       PYBINARIES+=(${version})
     fi
   done

scripts/internal/manylinux-build-wheels.sh

@@ -166,10 +166,10 @@ for PYBIN in "${PYBINARIES[@]}"; do
 done
 
 if test "${ARCH}" == "x64"; then
-  /opt/python/cp37-cp37m/bin/pip3 install auditwheel wheel
+  sudo /opt/python/cp39-cp39/bin/pip3 install auditwheel wheel
   # This step will fixup the wheel switching from 'linux' to 'manylinux2014' tag
   for whl in dist/itk_*linux_$(uname -p).whl; do
-      /opt/python/cp37-cp37m/bin/auditwheel repair --plat manylinux2014_x86_64 ${whl} -w /work/dist/
+      /opt/python/cp39-cp39/bin/auditwheel repair --plat manylinux2014_x86_64 ${whl} -w /work/dist/
       rm ${whl}
   done
 else