Make llama.cpp example become avaliable on macOS

[carlory]

What type of PR is this?

/kind bug

What this PR does / why we need it

• curl -v -L --fail -o Meta-Llama-3-8B-Instruct-Q5_K_M.gguf http://$(ip -4 route show default | awk '/default/ { print $3 }'):9999/16d824ee771e0e33b762bb3dc3232b972ac8dce4d2d449128fca5081962a1a9e; \ can not find the correct host IP when I run script on macOS
• the --exact option is unavailable on macOS

Test result:

(base) ➜  llamacpp git:(main) ✗ dev/tasks/run-in-kind
...
#23 [bartowski quantizer 5/6] RUN if [ -n "10.64.0.228" ]; then     curl -v -L --fail -o Meta-Llama-3-8B-Instruct-Q5_K_M.gguf http://10.64.0.228:9999/16d824ee771e0e33b762bb3dc3232b972ac8dce4d2d449128fca5081962a1a9e;   else     curl -v -L --fail -o Meta-Llama-3-8B-Instruct-Q5_K_M.gguf http://$(ip -4 route show default | awk '/default/ { print $3 }'):9999/16d824ee771e0e33b762bb3dc3232b972ac8dce4d2d449128fca5081962a1a9e;   fi
 24 5467M   24 1317M    0     0  6518k      0  0:14:18  0:03:26  0:10:52 1393k
...
leaderworkerset.leaderworkerset.x-k8s.io/llamacpp-llama3-8b-instruct-bartowski-q5km serverside-applied
service/llamacpp serverside-applied
+ kubectl run clichat --image=clichat:latest --rm=true -it --image-pull-policy=IfNotPresent --env=LLM_ENDPOINT=http://llamacpp:80
If you don't see a command prompt, try pressing enter.

> who are you
	I am LLaMA, a helpful AI assistant. I'm here to assist you with any questions or tasks you may have.

Which issue(s) this PR fixes

Fixes #

Special notes for your reviewer

Does this PR introduce a user-facing change?

NONE

[carlory]

/test pull-lws-test-e2e-main-1-27

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[liurupeng]

/lgtm
/approve

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This pull-request has been approved by: carlory, liurupeng

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