Fix ServiceEntry example in concepts/traffic-management

[merusso]

Fixes issue #11396.

This change replaces the incorrect mTLS egress example with a simpler,
valid example that adjusts the TCP connection timeout.

Page: Documentation / Concepts / Traffic Management
Section: Service entry example
URL: https://istio.io/latest/docs/concepts/traffic-management/#service-entry-example

• Docs

[istio-testing]

Hi @merusso. Thanks for your PR.

I'm waiting for a istio member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[craigbox]

Good catch, LGTM.
Will ask a WG member to check also.

/ok-to-test

[ericvn]

@istio/wg-networking-maintainers Would you review this PR. Thanks.

[howardjohn]

lgtm

[craigbox]

/cherrypick release-1.14