Investigate go leak in tests

[hdkshingala]

We are seeing go leaks after upgrading OTEL to v0.80.0 - https://app.circleci.com/pipelines/github/fluxninja/aperture/12003/workflows/0e3f6496-5e27-4c2d-a360-6bc26cfadffb/jobs/54796

The error trace is as below:

------------------------------
[AfterSuite] [FAILED] [6.476 seconds]
[AfterSuite] 
/root/project/test/aperture_suite_test.go:211

  [FAILED] Unexpected error:
      <*errors.errorString | 0xc0011da0c0>: 
      found unexpected goroutines:
      [Goroutine 121 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:
      goroutine 121 [select]:
      google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc00051a980, {0xa3d37a0, 0xc0001bc690})
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db
      created by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a
      
       Goroutine 120 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:
      goroutine 120 [select]:
      google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc00051a8c0, {0xa3d37a0, 0xc0001bc640})
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db
      created by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a
      
       Goroutine 147 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:
      goroutine 147 [select]:
      google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc001091120, {0xa3d37a0, 0xc0006bf720})
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db
      created by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a
      
       Goroutine 148 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:
      goroutine 148 [select]:
      google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc001091180, {0xa3d37a0, 0xc0006bf770})
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db
      created by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer
      	/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a
      
      ]
      {
          s: "found unexpected goroutines:\n[Goroutine 121 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:\ngoroutine 121 [select]:\ngoogle.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc00051a980, {0xa3d37a0, 0xc0001bc690})\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db\ncreated by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a\n\n Goroutine 120 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:\ngoroutine 120 [select]:\ngoogle.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc00051a8c0, {0xa3d37a0, 0xc0001bc640})\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db\ncreated by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a\n\n Goroutine 147 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:\ngoroutine 147 [select]:\ngoogle.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc001091120, {0xa3d37a0, 0xc0006bf720})\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db\ncreated by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a\n\n Goroutine 148 in state select, with google.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run on top of the stack:\ngoroutine 148 [select]:\ngoogle.golang.org/grpc/internal/grpcsync.(*CallbackSerializer).run(0xc001091180, {0xa3d37a0, 0xc0006bf770})\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:83 +0x1db\ncreated by google.golang.org/grpc/internal/grpcsync.NewCallbackSerializer\n\t/home/circleci/go/pkg/mod/google.golang.org/[email protected]/internal/grpcsync/callback_serializer.go:55 +0x23a\n\n]",
      }
  occurred
  In [AfterSuite] at: /root/project/test/aperture_suite_test.go:237 @ 07/04/23 09:19:12.723
------------------------------

Summarizing 1 Failure:
  [FAIL] [AfterSuite] 
  /root/project/test/aperture_suite_test.go:237

Ran 13 of 13 Specs in 43.199 seconds
FAIL! -- 13 Passed | 0 Failed | 0 Pending | 0 Skipped