TestGrpcGetEvaluationsValidation is flaky

[kentakozuka]

Version

main

Describe the bug

=== RUN   TestGrpcGetEvaluationsValidation/success
    api_grpc_test.go:1906: 
        	Error Trace:	/home/runner/work/bucketeer/bucketeer/pkg/gateway/api/api_grpc_test.go:1906
        	Error:      	Not equal: 
        	            	expected: &gateway.GetEvaluationsResponse{state:impl.MessageState{NoUnkeyedLiterals:pragma.NoUnkeyedLiterals{}, DoNotCompare:pragma.DoNotCompare{}, DoNotCopy:pragma.DoNotCopy{}, atomicMessageInfo:(*impl.MessageInfo)(nil)}, sizeCache:0, unknownFields:[]uint8(nil), State:2, Evaluations:(*feature.UserEvaluations)(0xc000023680), UserEvaluationsId:"no_evaluations"}
        	            	actual  : &gateway.GetEvaluationsResponse{state:impl.MessageState{NoUnkeyedLiterals:pragma.NoUnkeyedLiterals{}, DoNotCompare:pragma.DoNotCompare{}, DoNotCopy:pragma.DoNotCopy{}, atomicMessageInfo:(*impl.MessageInfo)(nil)}, sizeCache:0, unknownFields:[]uint8(nil), State:2, Evaluations:(*feature.UserEvaluations)(0xc0006cc600), UserEvaluationsId:"no_evaluations"}
        	            	
        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -28,3 +28,3 @@
        	            	   },
        	            	-  CreatedAt: (int64) 1718339983,
        	            	+  CreatedAt: (int64) 1718339984,
        	            	   ArchivedFeatureIds: ([]string) {
        	Test:       	TestGrpcGetEvaluationsValidation/success
        	Messages:   	success

Steps to reproduce the bug

No response

Expected behavior

No response

Relevant log output

No response

Additional information

No response