Test Python 3.13 on GH Actions (#51)

+ Update tests to handle changed error messages.

.github/workflows/main.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: [3.8, 3.9, '3.10', '3.11', '3.12', 'pypy-3.10']
+        python-version: [3.8, 3.9, '3.10', '3.11', '3.12', '3.13', 'pypy-3.10']
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4

setup.cfg

@@ -19,6 +19,7 @@ classifiers =
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
     Topic :: Software Development :: Testing
 platform = any
 

tests/resources/test-json-extra-comma.bat

@@ -1,2 +1,2 @@
 @echo off
-python %~f0\..\sut-json-load.py %1 2>&1 | findstr /c:"Expecting property name" /c:"Expecting object" >NUL 2>&1
+python %~f0\..\sut-json-load.py %1 2>&1 | findstr /c:"Expecting property name" /c:"Expecting object" /c:"Illegal trailing comma" >NUL 2>&1

tests/resources/test-json-extra-comma.sh

@@ -1,2 +1,2 @@
 #! /bin/bash
-python $(dirname $0)/sut-json-load.py $1 2>&1 | grep -q -E "Expecting property name|Expecting object"
+python $(dirname $0)/sut-json-load.py $1 2>&1 | grep -q -E "Expecting property name|Expecting object|Illegal trailing comma"