Log Message:
libical: update to 3.0.17.

    Improved Android support
    Escape commas in x-property TEXT values
    Built-in timezones updated to tzdata2023c
    icalparser_ctrl setting defines how to handle invalid CONTROL characters \ 
during parsing
    New publicly available functions:
        get_zone_directory()
        icalparser_get_ctrl
        icalparser_set_ctrl