Fix FIROptions module organization #5633

Job	Run time
storage-integration-tests (Swift)	20m 37s
storage-integration-tests (ObjC)	7m 40s
quickstart (swift, macos-14, Xcode_15.3)	5m 51s
spm-package-resolved	52s
quickstart-ftl-cron-only	0s
pod-lib-lint (ios, macos-14)	9m 13s
pod-lib-lint (tvos, macos-14)	6m 1s
pod-lib-lint (macos, macos-14)	4m 14s
pod-lib-lint (watchos, macos-14)	2m 29s
spm (iOS, macos-14, Xcode_15.2)	6m 0s
spm (iOS, macos-14, Xcode_16)	8m 0s
spm (tvOS, macos-14, Xcode_15.2)	3m 10s
spm (tvOS, macos-14, Xcode_16)	6m 55s
spm (macOS, macos-14, Xcode_15.2)	5m 0s
spm (macOS, macos-14, Xcode_16)	2m 37s
spm (catalyst, macos-14, Xcode_15.2)	2m 44s
spm (catalyst, macos-14, Xcode_16)	3m 3s
spm (watchOS, macos-14, Xcode_15.2)	4m 45s
spm (watchOS, macos-14, Xcode_16)	4m 9s
storage-cron-only	0s
	1h 43m 20s

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