Update sysdata.rda to new IDS release

[christophscheuch]

Includes:

• Removing countries and counterparts described in the issue: Enhancement: Update available geographies and counterparts to 2023 data #52
• Ensuring NA values for some geography columns that were overlooked (they had "NA" character)
• Taking the correct counterpart_type "Institution" which was mistakenly overwritten by "Other"
• I also updated a bulk download test that failed due to outdated message text in the test

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (35a94fd) to head (355d926).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #53   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines          232       232           
=========================================
  Hits           232       232           

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[t-emery]

It looks like the Namibia (iso2c: "NA") problem strikes again! That's the reason I have such a strong preference for iso3c over iso2c.

I reviewed, and it all looks good.