fix: enabled data race

[fracasula]

Description

Don't mind the stack trace that says v1.5.0, this happens on the latest of RudderServer as well.

Quick fix for:

==================
WARNING: DATA RACE
Write at 0x00c000195be0 by goroutine 905:
  github.com/rudderlabs/rudder-server/services/stats.(*statsdStats).Start()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/stats.go:126 +0x3de
  github.com/rudderlabs/device-mode-transformation-server/cmd/server.Run()
      /Users/debanjanchatterjee/backend/device-mode-transformation-server/cmd/server/main.go:51 +0x2c3
  github.com/rudderlabs/device-mode-transformation-server/cmd/server_test.beforeEach.func1()
      /Users/debanjanchatterjee/backend/device-mode-transformation-server/cmd/server/main_test.go:51 +0x3c
  golang.org/x/sync/errgroup.(*Group).Go.func1()
      /Users/debanjanchatterjee/.go/pkg/mod/golang.org/x/sync@v0.1.0/errgroup/errgroup.go:75 +0x82

Previous read at 0x00c000195be0 by goroutine 463:
  github.com/rudderlabs/rudder-server/services/stats.(*statsdStats).collectPeriodicStats.func1()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/stats.go:177 +0xa4
  github.com/rudderlabs/rudder-server/services/stats.runtimeStatsCollector.outputGCStats()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/periodic.go:155 +0x255
  github.com/rudderlabs/rudder-server/services/stats.runtimeStatsCollector.zeroStats()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/periodic.go:92 +0x1b2
  github.com/rudderlabs/rudder-server/services/stats.runtimeStatsCollector.run.func1()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/periodic.go:59 +0x65
  runtime.deferreturn()
      /usr/local/go/src/runtime/panic.go:476 +0x32
  github.com/rudderlabs/rudder-server/services/stats.(*statsdStats).collectPeriodicStats.func2()
      /Users/debanjanchatterjee/.go/pkg/mod/github.com/rudderlabs/rudder-server@v1.5.0-preview.2/services/stats/stats.go:191 +0x117

Notion Ticket

< Notion Link >

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Base: 52.77% // Head: 52.64% // Decreases project coverage by -0.14% ⚠️

Coverage data is based on head (db8c621) compared to base (4832630).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3041      +/-   ##
==========================================
- Coverage   52.77%   52.64%   -0.14%     
==========================================
  Files         334      334              
  Lines       52216    52216              
==========================================
- Hits        27558    27487      -71     
- Misses      23056    23127      +71     
  Partials     1602     1602              

Impacted Files	Coverage Δ
services/stats/config.go	64.28% <ø> (ø)
services/stats/measurement.go	80.68% <100.00%> (ø)
services/stats/stats.go	98.22% <100.00%> (ø)
processor/stash/stash.go	45.25% <0.00%> (-21.54%)	⬇️
testhelper/freeport.go	66.66% <0.00%> (-13.34%)	⬇️
testhelper/log/log.go	7.69% <0.00%> (-3.85%)	⬇️
jobsdb/migration.go	76.28% <0.00%> (-2.07%)	⬇️
services/stats/periodic.go	89.43% <0.00%> (-1.63%)	⬇️
services/rsources/handler.go	73.82% <0.00%> (-0.83%)	⬇️
jobsdb/backup.go	75.40% <0.00%> (-0.36%)	⬇️
... and 2 more

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