congressional_districts() uses national file for 2022-2023 but per-state files exist

[benja-lin]

The 'congressional_districts()' function has a cutoff at 'year >= 2024' for per-state file downloads, but per-state files are available for 2022 and 2023. This affects the 'cb=False' case.

Current behavior:

• 2022 and 2023 years attempt to download a national file (tl_{year}_us_cd118.zip)
• This fails with both HTTP and FTP errors
  Downloading VA 2023... HTTP download failed, trying FTP as fallback... Downloading tl_2023_us_cd118.zip from Census FTP... ✗ Failed VA 2023: Download failed with both HTTP and FTP; check your internet connection or the status of the Census Bureau website at https://www2.census.gov/geo/tiger/ or ftp://ftp2.census.gov/geo/tiger/

Expected behavior:

• 2022 and 2023 should use per-state URLs, same as 2024+

Verified per-state files exist at:

• https://www2.census.gov/geo/tiger/TIGER2022/CD/tl_2022_01_cd118.zip
• https://www2.census.gov/geo/tiger/TIGER2023/CD/tl_2023_01_cd118.zip

Suggested fix: change if year >= 2024 to if year >= 2022 on line 104

Environment:

• pygris version: 0.2.1
• Python 3.12
• Windows 10