Latest season function should return the next season if there are multiple future seasons defined

[toddrob99]

Identified in #151, MLB has defined 2025 and 2026 seasons prior to the 2025 season starting. As a result, latest_season() returns 2026 when the expected "latest season" is the upcoming 2025.

https://statsapi.mlb.com/api/v1/seasons/all?sportId=1

Response on 30 Jan 2025 (seasons prior to 2024 removed from response):

{
  "copyright": "Copyright 2025 MLB Advanced Media, L.P.  Use of any content on this page acknowledges agreement to the terms posted here http://gdx.mlb.com/components/copyright.txt",
  "seasons": [
    {
      "seasonId": "2024",
      "hasWildcard": true,
      "preSeasonStartDate": "2024-01-01",
      "preSeasonEndDate": "2024-02-21",
      "seasonStartDate": "2024-02-22",
      "springStartDate": "2024-02-22",
      "springEndDate": "2024-03-26",
      "regularSeasonStartDate": "2024-03-20",
      "lastDate1stHalf": "2024-07-14",
      "allStarDate": "2024-07-16",
      "firstDate2ndHalf": "2024-07-19",
      "regularSeasonEndDate": "2024-09-30",
      "postSeasonStartDate": "2024-10-01",
      "postSeasonEndDate": "2024-10-30",
      "seasonEndDate": "2024-10-30",
      "offseasonStartDate": "2024-10-31",
      "offSeasonEndDate": "2024-12-31",
      "seasonLevelGamedayType": "P",
      "gameLevelGamedayType": "P",
      "qualifierPlateAppearances": 3.1,
      "qualifierOutsPitched": 3
    },
    {
      "seasonId": "2025",
      "hasWildcard": true,
      "preSeasonStartDate": "2025-01-01",
      "preSeasonEndDate": "2025-02-19",
      "seasonStartDate": "2025-02-20",
      "springStartDate": "2025-02-20",
      "springEndDate": "2025-03-25",
      "regularSeasonStartDate": "2025-03-26",
      "lastDate1stHalf": "2025-07-14",
      "allStarDate": "2025-07-15",
      "firstDate2ndHalf": "2025-07-19",
      "regularSeasonEndDate": "2025-09-28",
      "postSeasonStartDate": "2025-09-30",
      "postSeasonEndDate": "2025-10-31",
      "seasonEndDate": "2025-10-31",
      "offseasonStartDate": "2025-11-01",
      "offSeasonEndDate": "2025-12-31",
      "seasonLevelGamedayType": "P",
      "gameLevelGamedayType": "P",
      "qualifierPlateAppearances": 3.1,
      "qualifierOutsPitched": 3
    },
    {
      "seasonId": "2026",
      "hasWildcard": true,
      "preSeasonStartDate": "2026-01-01",
      "preSeasonEndDate": "2026-02-19",
      "seasonStartDate": "2026-02-20",
      "springStartDate": "2026-02-20",
      "springEndDate": "2026-03-25",
      "regularSeasonStartDate": "2026-03-26",
      "lastDate1stHalf": "2026-07-14",
      "allStarDate": "2026-07-15",
      "firstDate2ndHalf": "2026-07-19",
      "regularSeasonEndDate": "2026-09-28",
      "postSeasonStartDate": "2026-09-30",
      "postSeasonEndDate": "2026-10-31",
      "seasonEndDate": "2026-10-31",
      "offseasonStartDate": "2026-11-01",
      "offSeasonEndDate": "2026-12-31",
      "seasonLevelGamedayType": "P",
      "gameLevelGamedayType": "P",
      "qualifierPlateAppearances": 3.1,
      "qualifierOutsPitched": 3
    }
  ]
}