Bump kubernetes deps to v1.29.2.

[jkh52]

Catch up master branch to kubernetes v1.29.2. After this we can do similar in release-0.29 branch, for #562.

[jkh52]

/retest

[jkh52]

Testing by hand, the below seems like a flake, but I worry could also be "more likely" with the newer grpc version and worth investigation.

--- FAIL: TestProxyDial_RequestCancelled_Concurrent_GRPC (32.82s)
    proxy_test.go:426: Agent connections leaked: 
        
        Diff:
        --- metric output does not match expectation; want
        +++ got:
        @@ -2,3 +2,3 @@
         # TYPE konnectivity_network_proxy_agent_open_endpoint_connections gauge
        -konnectivity_network_proxy_agent_open_endpoint_connections 0
        +konnectivity_network_proxy_agent_open_endpoint_connections 1
         
    proxy_test.go:429: found unexpected goroutines:
        [Goroutine 5753 in state IO wait, with internal/poll.runtime_pollWait on top of the stack:
        goroutine 5753 [IO wait]:
        internal/poll.runtime_pollWait(0x7f2348647fe0, 0x72)
        	/usr/local/go/src/runtime/netpoll.go:343 +0x85
        internal/poll.(*pollDesc).wait(0xc0001cca20, 0xc0005d7000?, 0x0)
        	/usr/local/go/src/internal/poll/fd_poll_runtime.go:84 +0xb1
        internal/poll.(*pollDesc).waitRead(...)

[jkh52]

/retest

[jkh52]

/assign @cheftako

[cheftako]

/lgtm
/approve

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