Update `analyze_vars _in_cols` to allow non-numeric nominal timepoint variable #2671

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1 error and 3 warnings

Process completed with exit code 1.

file=tests/testthat/test-analyze_vars_in_cols.R,line=15,col=4,[indentation_linter] Indentation should be 27 spaces but is 4 spaces.

file=tests/testthat/test-analyze_vars_in_cols.R,line=22,col=4,[indentation_linter] Indentation should be 27 spaces but is 4 spaces.

file=tests/testthat/test-analyze_vars_in_cols.R,line=267,col=4,[indentation_linter] Indentation should be 30 spaces but is 4 spaces.