[newlib-cygwin] Cygwin: Update CI configuration for python version change

[Jon TURNEY]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=54b6c0e81f05ab2f047df64716f3fa2da3e7e2b1

commit 54b6c0e81f05ab2f047df64716f3fa2da3e7e2b1
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date:   Thu Dec 30 00:33:28 2021 +0000

    Cygwin: Update CI configuration for python version change
    
    Update the python version for python-lxml and python-ply packages.
    
    'dblate' now depends on python39, so that will be installed and made the
    default by alternatives, so make sure that these python packages are
    also available for that python version.

Diff:
---
 .appveyor.yml                | 4 ++--
 .github/workflows/cygwin.yml | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.appveyor.yml b/.appveyor.yml
index 319793386..8919918fc 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -52,8 +52,8 @@ texlive-collection-latexrecommended,\
 texlive-collection-fontsrecommended,\
 texlive-collection-pictures,\
 xmlto,\
-python38-lxml,\
-python38-ply"
+python39-lxml,\
+python39-ply"
 
 build_script: >-
     %CYGWIN_ROOT%/bin/bash -lc "
diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 524a9a3b8..7e73a360f 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -87,8 +87,8 @@ jobs:
           mingw64-${{ matrix.pkgarch }}-zlib,
           patch,
           perl,
-          python38-lxml,
-          python38-ply,
+          python39-lxml,
+          python39-ply,
           texlive-collection-fontsrecommended,
           texlive-collection-latexrecommended,
           texlive-collection-pictures,