v20230624

• Added OUK/OUK, Out Skerries Airstrip, Shetland, Scotland, Great Britain, LID: EG78. This is a landing strip
  which has an IATA location identifier but no ICAO one, and is not present in GB'S AIP. As such, a pseudo-IATA location
  identifier of _OUK is used in this database. This airstrip is often identified as EG78 (which is not an
  ICAO location identifier) and this value is used as a pseudo-LID. Based on the upstream PR #89 <https://github.com/mwgg/Airports/issues/89>_ by Oren Geva <https://github.com/o4oren>__.
• Added IATA location identifier and fixed information on UESG/BGN, Belaya Gora Airport, Belaya Gora, Sakha Republic,
  Russia (based on the upstream PR #88 <https://github.com/mwgg/Airports/issues/88>__ by tdewin <https://github.com/tdewin>__).
• Removed ETUR/BGN, Brugge Air Base, Nordrhein-Westfalen, Germany, closed on 15 June 2001.
• Added VCRI/HRI, Mattala Rajapaksa International Airport, Hambantota, Southern Province, Sri Lanka (based on
  the upstream PR #90 <https://github.com/mwgg/Airports/issues/90>__ by Justin Dixson <https://github.com/JDShadowline>__).
• Added IATA code to VCCN/KTY, Katukurunda Airport, Kalutara, Western Province, Sri Lanka.
• Updated airport names and province names for airports in Sri Lanka.