Panic due to concurrent map read and map write

[AkarshES]

K-bench had a fatal error and panicked due to concurrent map read and map write. Adding the trace log.

time="2023-04-07T04:44:19.124" level=info msg="Updated ProgressDeadlineSeconds for deployments kbench-deployment-oid-0-tid-1568"
time="2023-04-07T04:44:19.124" level=info msg="Sleep 9000 mili-seconds after UPDATE action"
time="2023-04-07T04:44:19.124" level=info msg="Updated ProgressDeadlineSeconds for deployments kbench-deployment-oid-0-tid-819"
time="2023-04-07T04:44:19.124" level=info msg="Sleep 9000 mili-seconds after UPDATE action"
time="2023-04-07T04:44:28.125" level=info msg="All operations completed."
fatal error: concurrent map read and map write

goroutine 1 [running]:
runtime.throw({0x11d3617?, 0x0?})
	/usr/lib/golang/src/runtime/panic.go:992 +0x71 fp=0xc0021096c0 sp=0xc002109690 pc=0x43a491
runtime.mapaccess2_faststr(0xc002109b88?, 0xd8f55ce171?, {0xc03510b5c0, 0x31})
	/usr/lib/golang/src/runtime/map_faststr.go:117 +0x3d4 fp=0xc002109728 sp=0xc0021096c0 pc=0x419214
k-bench/manager.(*PodManager).CalculateStats(0xc000488000)
	/root/go/src/k-bench/manager/pod_manager.go:1173 +0xef3 fp=0xc002109d08 sp=0xc002109728 pc=0xf75c93
k-bench/manager.(*DeploymentManager).CalculateStats(0xc0001eecf8?)
	/root/go/src/k-bench/manager/deployment_manager.go:547 +0x1d fp=0xc002109d20 sp=0xc002109d08 pc=0xf63a3d
k-bench/util.Finalize()
	/root/go/src/k-bench/util/testdriver.go:323 +0x1c6 fp=0xc002109f20 sp=0xc002109d20 pc=0xf9e966
k-bench/util.Run(_, {{{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x0, ...}, ...}, ...}, ...)
	/root/go/src/k-bench/util/testdriver.go:297 +0xfdd fp=0xc00210f670 sp=0xc002109f20 pc=0xf9dbdd
main.main()
	/root/go/src/k-bench/cmd/kbench.go:195 +0xb6e fp=0xc00210ff80 sp=0xc00210f670 pc=0xfb740e
runtime.main()
	/usr/lib/golang/src/runtime/proc.go:250 +0x212 fp=0xc00210ffe0 sp=0xc00210ff80 pc=0x43cc72
runtime.goexit()
	/usr/lib/golang/src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00210ffe8 sp=0xc00210ffe0 pc=0x46a1c1

goroutine 35 [chan receive]:
k8s.io/klog.(*loggingT).flushDaemon(0x0?)
	/root/go/pkg/mod/k8s.io/klog@v1.0.0/klog.go:1010 +0x6a
created by k8s.io/klog.init.0
	/root/go/pkg/mod/k8s.io/klog@v1.0.0/klog.go:411 +0xef

goroutine 3 [syscall, 20 minutes]:
os/signal.signal_recv()
	/usr/lib/golang/src/runtime/sigqueue.go:151 +0x2f
os/signal.loop()
	/usr/lib/golang/src/os/signal/signal_unix.go:23 +0x19
created by os/signal.Notify.func1.1
	/usr/lib/golang/src/os/signal/signal.go:151 +0x2a