MINOR: Correct the variable name in remote storage's test #29408

Job	Run time
build / Configure Workflow	4s
build / Compile and Check (Merge Ref)	4m 59s
build / Load Test Catalog	19s
build / JUnit tests Java 25 (new)	6m 5s
build / JUnit tests Java 25	59m 28s
build / JUnit tests Java 17 (flaky)	4m 16s
build / JUnit tests Java 17 (new)	6m 9s
build / JUnit tests Java 25 (flaky)	4m 22s
build / JUnit tests Java 17	59m 40s
build / Collate Test Catalog	17s
build / CI checks completed	2s
build / Update Test Catalog	-1s
	2h 25m 40s

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