improve error messages with {cli}

[github-actions[bot]]

Coverage Report

|file|head|main|diff| | :-- | --: | --: | --: | |Overall|87%|87%|0%| |R/assert_columns_exists.R|100%|100%|0%| |R/assert_regex.R|100%|100%|0%| |R/assert_subset.R| 92%| 92%|0%| |R/assert_valid_ai_company_id.R| 0%| 0%|0%| |R/assert_valid_asset_type.R| 0%| 0%|0%| |R/assert_valid_bics_sector_code.R| 0%| 0%|0%| |R/assert_valid_bics_subgroup_code.R| 0%| 0%|0%| |R/assert_valid_emissions_factor_unit.R|100%|100%|0%| |R/assert_valid_equity_market.R| 0%| 0%|0%| |R/assert_valid_factset_entity_id.R| 0%| 0%|0%| |R/assert_valid_factset_fund_id.R| 0%| 0%|0%| |R/assert_valid_factset_sym_id.R| 0%| 0%|0%| |R/assert_valid_isin.R|100%|100%|0%| |R/assert_valid_iso2c.R|100%|100%|0%| |R/assert_valid_iso4217c.R|100%|100%|0%| |R/assert_valid_production_unit.R|100%|100%|0%| |R/assert_valid_scenario_geography.R| 0%| 0%|0%| |R/assert_valid_sector.R| 95%| 95%|0%| |R/assert_valid_sectors_with_assets.R| 0%| 0%|0%| |R/assert_valid_technology_for_sector.R|100%|100%|0%| |R/assert_valid_technology.R|100%|100%|0%| |R/fake_currencies.R|100%|100%|0%| |R/fake_masterdata_debt_datastore.R|100%|100%|0%| |R/fake_masterdata_ownership_datastore.R|100%|100%|0%| |R/is_valid_isin.R|100%|100%|0%| |R/matches_regex.R|100%|100%|0%| |R/set_collapse.R|100%|100%|0%| |R/simplify_if_one_col_df.R|100%|100%|0%| |R/validate_currencies.R|100%|100%|0%| |R/validate_masterdata_debt_datastore.R|100%|100%|0%| |R/validate_masterdata_ownership_datastore.R|100%|100%|0%|