1.2.0

• python 3.12 + pandas 2.2 migration (probably compatible with python 3.9, but for sure not earlier):
  • fix pandas 2 deprecations:
    • DataFrame/Series.append -> concat, applymap -> map, Series.iteritems -> items,
    • Styler.render -> to_html, Styler.where -> map,
    • 'S' freq alias deprecation from pandas 2.1,
    • pandas 2 not accepting strings in float-dtype columns,
    • fix a pandas future deprecation warning (setting an item of incompatible dtype),
    • warn about some Pandas 2 warnings to be fixed later,
  • silent a pandas 2.2 future warning about down casting and try to fix it for when it comes true (hope),
  • python 3.12 compatibility fixes:
    • fix ResultSet.fromExcel not closing the ExcelFile object,
    • fix special chars verification only in temp dir name (tempfile.mkdtemp returns an absolute path from python 3.12),
  • update python minimal version specification, and modules versions in requirements.txt
    (to new actually tested versions and pandas 2.2 minimum supported versions),
• non-regression valtests for analyser & pre-analyser:
  • added a 2nd HTML report test method, through pandas.read_html,
  • improve HTML report comparison with prior BeautifulSoup prettification.