Update utils.py - replace/force-create import_mode were not being handled

[sidphbot]

code snippet to reproduce:
doltcli
write_rows(write_rows(dolt, "characters", TEST_ROWS, REPLACE, ["id"])

or via doltpy:
write_pandas(dolt, table_name, df, import_mode='replace')

both call _import_helper which refers to

doltcli/doltcli/utils.py

Lines 251 to 265 in a807c93

	def_get_import_mode_and_flags(
	dolt: DoltT, table: str, import_mode: Optional[str] =None
	) ->str:
	import_modes=IMPORT_MODES_TO_FLAGS.keys()
	ifimport_modeandimport_modenotinimport_modes:
	raiseValueError(f"update_mode must be one of: {import_modes}")
	else:
	iftablein [table.namefortableindolt.ls()]:
	logger.info(f'No import mode specified, table exists, using "{UPDATE}"')
	import_mode=UPDATE
	else:
	logger.info(f'No import mode specified, table exists, using "{CREATE}"')
	import_mode=CREATE
	returnimport_mode

the checks force it to return only create/update mode depending on existence of table, replace/force-create modes are ignored

[codecov-commenter]

Codecov Report

Merging #32 (a807c93) into main (a807c93) will not change coverage.
The diff coverage is n/a.

❗ Current head a807c93 differs from pull request most recent head 059a7c6. Consider uploading reports for the commit 059a7c6 to get more accurate results

@@ Coverage Diff @@## main #32 +/- ##
=======================================
Coverage 66.04% 66.04% =======================================
Files 5 5 Lines 972 972 =======================================
Hits 642 642 Misses 330 330 

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a807c93...059a7c6. Read the comment docs.