[ApolloPagination] Add conditional `Equatable` conformance to pagers #942

Job	Run time
Codegen Test Configurations - macOS	6m 11s
Cocoapods Integration Tests - macOS	19s
Run swift build for SPM packages (apollo-ios)	55s
changes	5s
Run swift build for SPM packages (apollo-ios-codegen)	1m 2s
Run swift build for SPM packages (apollo-ios-pagination)	1m 17s
Run Tuist Generation	1m 36s
Verify Frontend Bundle Latest - macOS	0s
Apollo Unit Tests - macOS	11s
Codegen CLI Unit Tests - macOS	14s
Codegen Lib Unit Tests - macOS	40s
Apollo Integration Tests - macOS	0s
ApolloPagination Unit Tests - macOS	2m 56s
	15m 26s

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