add a database benchmark

crates/store_sqlite/benches/ical_event.ics

@@ -0,0 +1,47 @@
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+VERSION:2.0
+
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+X-LIC-LOCATION:Europe/Berlin
+BEGIN:DAYLIGHT
+TZNAME:CEST
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+DTSTART:19810329T020000
+RRULE:FREQ=YEARLY;UNTIL=20370329T010000Z;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:CET
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+DTSTART:19961027T030000
+RRULE:FREQ=YEARLY;UNTIL=20361026T010000Z;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+END:VTIMEZONE
+
+
+BEGIN:VEVENT
+UID:fa915b604e6e3f36772501ff869439e6a3c5cf67
+DTSTAMP:20250726T112617Z
+DTSTART;VALUE=DATE:20250806
+DTEND;VALUE=DATE:20250807
+SEQUENCE:2
+SUMMARY:all day event
+TRANSP:OPAQUE
+CLASS:PUBLIC
+CREATED:20250726T144426Z
+LAST-MODIFIED:20250726T144426Z
+BEGIN:VALARM
+TRIGGER:-PT30M
+REPEAT:2
+DURATION:PT15M
+ACTION:DISPLAY
+DESCRIPTION:Breakfast meeting with executive\n
+team at 8:30 AM EST.
+END:VALARM
+END:VEVENT
+
+END:VCALENDAR