Bump symfony/filesystem from 6.3.1 to 6.4.0 #1638

Job	Run time
build (STATIC_CODE_ANALYSIS, 8.1, FALSE, ^4)	42s
build (INTEGRATED_TEST_ON_OLDEST_SUPPORTED, 8.1, FALSE, ^4)	59s
build (INTEGRATED_TEST_ON_PREVIOUS_MINOR, 8.1, FALSE, ^4)	2m 46s
build (ISOLATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	1m 58s
build (INTEGRATED_TEST_ON_CURRENT, 8.1, FALSE, ^4)	2m 43s
build (ISOLATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	1m 55s
build (INTEGRATED_TEST_ON_CURRENT_DEV, 8.1, FALSE, ^4)	2m 45s
build (STRICT_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	1m 13s
build (ISOLATED_TEST_ON_NEXT_MINOR, 8.1, FALSE, ^4)	3m 18s
build (DEPRECATED_CODE_SCAN_W_CONTRIB, 8.1, FALSE, ^4)	1m 2s
build (INTEGRATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	3m 30s
build (ISOLATED_TEST_ON_NEXT_MINOR_DEV, 8.1, FALSE, ^4)	2m 14s
build (LOOSE_DEPRECATED_CODE_SCAN, 8.1, FALSE, ^4)	1m 3s
build (INTEGRATED_TEST_ON_LATEST_LTS, 8.2, FALSE)	30s
build (ISOLATED_TEST_ON_CURRENT, 8.1, TRUE)	2m 37s
build (ISOLATED_TEST_ON_CURRENT, 8.2)	1m 57s
all-successful	2s
	31m 14s

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