change base image to inwt/r-shiny:4.3.2

[jan-abel-inwt]

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[jan-abel-inwt]

@arunge Test getCKANGroupChoices() fails:

r$> test_that("Test getCKANGroupChoices()", {
      expect_equal(
        getCKANGroupChoices(),
        c(`IsoMemo Network` = "isomemo-group")
      )
    })
── Failure: Test getCKANGroupChoices() ───────────────────────────────────────────────────────────────────────────────────────
getCKANGroupChoices() not equal to c(`IsoMemo Network` = "isomemo-group").
Lengths differ: 2 is not 1

Current Return Value of getCKANGroupChoices() is:

r$> getCKANGroupChoices()
    arindambaag IsoMemo Network 
  "arindambaag" "isomemo-group

Should we adjust the test?