Fix: external materialization strategy adding extra newlines to logs #821

Job	Run time
Buena Vista functional test / python 3.11	2m 16s
code-quality	1m 15s
build packages	15s
Check if MotherDuck v0.10.x token exists	1s
file-based functional test / python 3.9	3m 24s
fsspec test / python 3.9	53s
file-based functional test / python 3.10	2m 49s
functional test / python 3.9	3m 15s
plugins test / python 3.11	55s
file-based functional test / python 3.11	2m 35s
functional test / python 3.10	3m 24s
file-based functional test / python 3.12	2m 43s
functional test / python 3.11	2m 27s
unit test / python 3.9	55s
unit test / python 3.10	53s
functional test / python 3.12	3m 12s
unit test / python 3.11	52s
unit test / python 3.12	59s
MotherDuck functional test / python 3.9	3m 59s
verify packages / python 3.9 / ubuntu-latest	28s
verify packages / python 3.10 / ubuntu-latest	27s
verify packages / python 3.11 / ubuntu-latest	29s
verify packages / python 3.12 / ubuntu-latest	30s
verify packages / python 3.9 / macos-latest	47s
verify packages / python 3.10 / macos-latest	37s
verify packages / python 3.11 / macos-latest	21s
verify packages / python 3.12 / macos-latest	27s
verify packages / python 3.9 / windows-latest	1m 32s
verify packages / python 3.10 / windows-latest	2m 12s
verify packages / python 3.11 / windows-latest	1m 36s
verify packages / python 3.12 / windows-latest	1m 12s
	47m 40s

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