Make grant configs a no-op for DuckDB #714

Job	Run time
Buena Vista functional test / python 3.9	10m 0s
Check if MotherDuck v0.10.x token exists	1s
code-quality	1m 22s
build packages	15s
file-based functional test / python 3.9	3m 34s
file-based functional test / python 3.10	3m 27s
fsspec test / python 3.9	53s
file-based functional test / python 3.11	2m 48s
functional test / python 3.9	2m 48s
plugins test / python 3.9	1m 1s
file-based functional test / python 3.12	3m 31s
functional test / python 3.10	2m 52s
functional test / python 3.11	2m 14s
unit test / python 3.9	1m 1s
functional test / python 3.12	2m 58s
unit test / python 3.10	57s
unit test / python 3.11	56s
unit test / python 3.12	1m 36s
MotherDuck functional test / python 3.9	3m 44s
verify packages / python 3.9 / ubuntu-latest	29s
verify packages / python 3.10 / ubuntu-latest	32s
verify packages / python 3.11 / ubuntu-latest	31s
verify packages / python 3.12 / ubuntu-latest	43s
verify packages / python 3.9 / macos-latest	25s
verify packages / python 3.10 / macos-latest	24s
verify packages / python 3.11 / macos-latest	28s
verify packages / python 3.12 / macos-latest	38s
verify packages / python 3.9 / windows-latest	1m 11s
verify packages / python 3.10 / windows-latest	1m 50s
verify packages / python 3.11 / windows-latest	1m 34s
verify packages / python 3.12 / windows-latest	2m 7s
	56m 50s

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