Add 2024 ACS 1-year PUMS data dictionary + enable 2024 recoding

[ashleyasmus]

Summary

This PR adds the 2024 ACS 1-year PUMS data dictionary and updates tidycensus::pums_variables so that 2024 variables can be read and used for recoding. It also extends the internal recode_years logic to include 2024 for acs1 only, keeping existing behavior unchanged for acs5 until the 5-year dictionary is available.

Changes

• Add PUMS_Data_Dictionary_2024.csv to data-raw/
• Regenerate packaged pums_variables dataset to include survey = "acs1", year = "2024"
• Update recode_years handling in R/load_data.R to support 2017–2024 for acs1 (leaving acs5 at 2017–2023)

Why this is needed

Currently, load_pums() / get_pums(recode = TRUE) prints:

“Recoding is currently supported for 2017 - 2023 data. Returning original data only.”

when requesting 2024 1-year PUMS. Adding the 2024 dictionary and extending acs1 recoding support resolves this for 2024.

Notes

• This PR intentionally does not add 2024 acs5 support, since the 5-year PUMS dictionary is not yet posted.
• A follow-up PR will remove the need to manually update recode_years by deriving supported years from pums_variables.

Testing

• Confirmed pums_variables includes acs1 2024 entries.
• Verified that get_pums(..., year = 2024, survey = "acs1", recode = TRUE) no longer prints the unsupported recoding message and returns recoded values.

library(tidycensus)

x <- get_pums(
  variables = c("AGEP", "SEX"),
  year = 2024,
  survey = "acs1",
  recode = TRUE
)

table(x$SEX, useNA = "ifany")

Related

• Fixes Add 2024 ACS 1-year PUMS data dictionary to pums_variables and enable 2024 recoding #633

[walkerke]

Thank you so much! I merged your other PR, and did some updates on my end to support the new 5-year ACS PUMS for 2024, which supersedes this PR.