BLD: update the manylinux versions used

We need newer versions of c++ for the font fallback.

A compatible version of pip is in the CPython source for

manylinux2010 : py 3.8.0+
manylinux2014 : py 3.9.0+

https://github.com/pypa/manylinux#manylinux

Author: tacaswell

.github/workflows/cibuildwheel.yml

@@ -70,8 +70,8 @@ jobs:
         env:
           CIBW_BUILD: "cp39-*"
           CIBW_SKIP: "*-musllinux*"
-          CIBW_MANYLINUX_X86_64_IMAGE: manylinux1
-          CIBW_MANYLINUX_I686_IMAGE: manylinux1
+          CIBW_MANYLINUX_X86_64_IMAGE: manylinux2014
+          CIBW_MANYLINUX_I686_IMAGE: manylinux2014
           CIBW_BEFORE_BUILD: >-
             pip install certifi oldest-supported-numpy &&
             git clean -fxd build
@@ -83,8 +83,8 @@ jobs:
         env:
           CIBW_BUILD: "cp38-*"
           CIBW_SKIP: "*-musllinux*"
-          CIBW_MANYLINUX_X86_64_IMAGE: manylinux1
-          CIBW_MANYLINUX_I686_IMAGE: manylinux1
+          CIBW_MANYLINUX_X86_64_IMAGE: manylinux2010
+          CIBW_MANYLINUX_I686_IMAGE: manylinux2010
           CIBW_BEFORE_BUILD: >-
             pip install certifi numpy==1.19.2 &&
             git clean -fxd build