fix: dropbox connector can now refresh token by itself #2254

Job	Run time
changelog	8s
shellcheck	7s
lint (3.9)	24s
lint (3.10)	22s
shfmt	36s
lint (3.11)	21s
lint (3.12)	24s
lint (3.13)	22s
test_ingest_unit (3.9)	38s
test_ingest_help (3.9)	2m 16s
test_ingest_unit (3.10)	39s
test_ingest_unit_unstructured (3.9)	49s
test_ingest_help (3.10)	2m 23s
test_ingest_unit (3.11)	35s
test_install_cli (3.9)	19s
test_ingest_unit_unstructured (3.10)	52s
test_ingest_help (3.11)	2m 14s
test_ingest_unit (3.12)	42s
test_install_cli (3.10)	19s
test_ingest_unit_unstructured (3.11)	44s
test_ingest_help (3.12)	2m 21s
test_ingest_unit (3.13)	3m 30s
test_install_cli (3.11)	38s
test_ingest_help (3.13)	2m 15s
test_install_cli (3.12)	19s
test_ingest_unit_unstructured (3.12)	55s
test_install_cli (3.13)	21s
	25m 33s

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