If the token is null, the connection hangs (#458) #3109

Job	Run time
check-types (3.13)	20s
Unit Tests + Kernel (Python 3.13)	2m 41s
check-linting (3.12)	20s
Unit Tests + Kernel (Python 3.10)	2m 39s
check-linting (3.11)	19s
check-types (3.12)	21s
check-types (3.10)	21s
Unit Tests + Kernel (Python 3.11)	2m 37s
check-types (3.14)	20s
Unit Tests + PyArrow (Python 3.10, min deps)	2m 37s
Unit Tests + Kernel (Python 3.14)	2m 37s
check-linting (3.10)	18s
check-types (3.11)	19s
Unit Tests + Kernel (Python 3.12)	2m 44s
check-linting (3.14)	22s
Unit Tests + PyArrow (Python 3.11, min deps)	2m 34s
check-linting (3.13)	18s
Unit Tests + PyArrow (Python 3.13, default deps)	2m 41s
Unit Tests + PyArrow (Python 3.11, default deps)	2m 36s
Unit Tests + PyArrow (Python 3.12, default deps)	2m 33s
Unit Tests (Python 3.10, min deps)	2m 1s
Unit Tests + PyArrow (Python 3.14, default deps)	2m 45s
Unit Tests (Python 3.11, default deps)	2m 1s
Unit Tests (Python 3.14, min deps)	2m 3s
Unit Tests (Python 3.10, default deps)	2m 3s
Unit Tests + PyArrow (Python 3.14, min deps)	2m 41s
Unit Tests (Python 3.11, min deps)	2m 1s
Unit Tests + PyArrow (Python 3.10, default deps)	2m 39s
Unit Tests (Python 3.14, default deps)	2m 5s
Unit Tests (Python 3.13, default deps)	2m 1s
Unit Tests (Python 3.12, default deps)	2m 2s
	53m 59s

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