Fix multi issue

[flovntp]

• fix Units, define your units #4505 by adding unit to runtime.request_terminate_timeout
• fix Runtime operation: add operations key #4503 by adding operations in the top Yaml properties
• fix web.locations.rules #4498 by adding rules in the list of exception for possible rules' properties

Why

Closes #{ISSUE_NUMBER}

What's changed

Where are changes

Updates are for:

• platform (sites/platform templates)
• upsun (sites/upsun templates)

[github-actions]

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See the changed pages:

Platform.sh docs

• https://fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/create-apps/app-reference/composable-image.html
• https://fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/create-apps/app-reference/single-runtime-image.html
• https://fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/languages/php.html

Upsun docs

• https://docs.upsun.com.fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/create-apps/app-reference/composable-image.html
• https://docs.upsun.com.fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/create-apps/app-reference/single-runtime-image.html
• https://docs.upsun.com.fix-multi-issue-3rxmmoq-ucq44jg6ofare.eu-5.platformsh.site/languages/php.html

[gmoigneu]

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