fix: `GraphQLOperation` hash uniqueness #1538

Job	Run time
changes	6s
Cocoapods Integration Tests - macOS	11s
Codegen Test Configurations - macOS	11m 26s
Run swift build for SPM packages (apollo-ios)	33s
Run swift build for SPM packages (apollo-ios-codegen)	29s
Run swift build for SPM packages (apollo-ios-pagination)	57s
Run Tuist Generation	3m 12s
Verify Frontend Bundle Latest - macOS	0s
Verify CLI Binary Archive - macOS	0s
Apollo Unit Tests - macOS	2m 44s
Codegen CLI Unit Tests - macOS	8s
Codegen Lib Unit Tests - macOS	20s
ApolloPagination Unit Tests - macOS	2m 14s
	22m 20s

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