CI: RuntimePrivilegedUnitTests TestArpPingHandling failed, timeout reached while waiting for condition

[jrajahalme]

	 START: node_linux_test.go:956: linuxPrivilegedIPv4OnlyTestSuite.TestArpPingHandling
	 START: node_linux_test.go:117: linuxPrivilegedIPv4OnlyTestSuite.SetUpTest
	 PASS: node_linux_test.go:117: linuxPrivilegedIPv4OnlyTestSuite.SetUpTest	0.002s
	 
	 node_linux_test.go:1071:
	     // insertNeighbor is invoked async, so thus this wait based on last ping
	     wait(nodev1.Identity(), &now, false)
	 node_linux_test.go:1054:
	     c.Assert(err, check.IsNil)
	 ... value *errors.errorString = &errors.errorString{s:"timeout reached while waiting for condition"} ("timeout reached while waiting for condition")

Seen in https://jenkins.cilium.io/job/Cilium-PR-Runtime-4.9/5434/testReport/junit/(root)/Suite-runtime/RuntimePrivilegedUnitTests_Run_Tests/

f25b1682_RuntimePrivilegedUnitTests_Run_Tests.zip

Similar to #16221, but this timeout happens after NodeAdd().

[krishgobinath]

Noticed same issue in this PR also. Same error

node_linux_test.go:1071: // insertNeighbor is invoked async, so thus this wait based on last ping wait(nodev1.Identity(), &now, false) node_linux_test.go:1054: c.Assert(err, check.IsNil) ... value *errors.errorString = &errors.errorString{s:"timeout reached while waiting for condition"} ("timeout reached while waiting for condition")