skip s3 tests if the secrets are not available (#511) #814

Job	Run time
file-based functional test / python 3.9	2m 51s
unit test / python 3.9	55s
file-based functional test / python 3.10	3m 12s
code-quality	1m 19s
unit test / python 3.10	1m 6s
file-based functional test / python 3.11	2m 32s
functional test / python 3.9	3m 8s
unit test / python 3.11	52s
functional test / python 3.10	3m 2s
file-based functional test / python 3.12	2m 42s
unit test / python 3.12	1m 1s
functional test / python 3.11	2m 32s
Buena Vista functional test / python 3.11	2m 23s
functional test / python 3.12	3m 7s
build packages	13s
Check if MotherDuck v0.10.x token exists	1s
fsspec test / python 3.9	55s
plugins test / python 3.11	56s
MotherDuck functional test / python 3.9	4m 8s
verify packages / python 3.9 / ubuntu-latest	27s
verify packages / python 3.10 / ubuntu-latest	29s
verify packages / python 3.11 / ubuntu-latest	27s
verify packages / python 3.12 / ubuntu-latest	32s
verify packages / python 3.9 / macos-latest	55s
verify packages / python 3.10 / macos-latest	49s
verify packages / python 3.11 / macos-latest	18s
verify packages / python 3.12 / macos-latest	31s
verify packages / python 3.9 / windows-latest	2m 32s
verify packages / python 3.10 / windows-latest	1m 26s
verify packages / python 3.11 / windows-latest	1m 30s
verify packages / python 3.12 / windows-latest	1m 31s
	48m 22s

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