If the token is null, the connection hangs (#458) #3102

Job	Run time
check-linting (3.10)	17s
check-types (3.10)	18s
check-linting (3.12)	20s
check-linting (3.13)	19s
check-types (3.14)	20s
check-linting (3.14)	20s
Unit Tests + PyArrow (Python 3.13, default deps)	2m 42s
Unit Tests + Kernel (Python 3.13)	2m 56s
check-types (3.11)	18s
Unit Tests + Kernel (Python 3.14)	2m 44s
check-types (3.12)	19s
Unit Tests + Kernel (Python 3.10)	2m 30s
Unit Tests + PyArrow (Python 3.12, default deps)	2m 50s
Unit Tests + PyArrow (Python 3.10, min deps)	2m 41s
check-linting (3.11)	18s
Unit Tests + PyArrow (Python 3.11, default deps)	2m 34s
Unit Tests + PyArrow (Python 3.10, default deps)	2m 29s
Unit Tests + Kernel (Python 3.11)	2m 43s
check-types (3.13)	19s
Unit Tests + PyArrow (Python 3.11, min deps)	2m 34s
Unit Tests + Kernel (Python 3.12)	2m 39s
Unit Tests (Python 3.11, min deps)	1m 56s
Unit Tests (Python 3.13, default deps)	2m 0s
Unit Tests (Python 3.14, min deps)	1m 59s
Unit Tests (Python 3.11, default deps)	1m 56s
Unit Tests (Python 3.12, default deps)	2m 2s
Unit Tests + PyArrow (Python 3.14, default deps)	2m 43s
Unit Tests (Python 3.14, default deps)	1m 59s
Unit Tests + PyArrow (Python 3.14, min deps)	2m 42s
Unit Tests (Python 3.10, default deps)	1m 59s
Unit Tests (Python 3.10, min deps)	1m 59s
	53m 45s

Provide feedback