Fix container<->host port mapping notes

[hsnabszhdn]

Why:

The statements are confusing and meant to be the other way around.

Closes: #34459

What's being changed (if available, include any code snippets, screenshots, or gifs):

Random port on the "host" vs. in the container "container" are swapped

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Content directory changes

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Source	Preview	Production	What Changed
actions/use-cases-and-examples/using-containerized-services/about-service-containers.md	fpt ghec ghes@ 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.14 3.13 3.12 3.11 3.10
actions/writing-workflows/workflow-syntax-for-github-actions.md	fpt ghec ghes@ 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.14 3.13 3.12 3.11 3.10

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fpt: Free, Pro, Team
ghec: GitHub Enterprise Cloud
ghes: GitHub Enterprise Server

[nguyenalex836]

@hsnabszhdn Thanks so much for opening a PR with this fix! I'll get this merged 🍏

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