docs: Deprecation of patternKey and patternValue in input schema

[mfori]

Partially resolves https://github.com/apify/apify-core/issues/24338

Community was informed in advance: https://apify.slack.com/archives/C09ELTQEY6R/p1770819418439049

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Note

Low Risk
Documentation-only change that marks two schema properties as deprecated and adds migration examples; no runtime/code behavior is modified.

Overview
Updates the Actor input schema specification docs to mark patternKey and patternValue as deprecated for both object and array fields, including cross-links to a new deprecation section.

Adds a dedicated deprecation notice with a support timeline (until May 31, 2026) and a migration guide showing how to replace array validations via items subschemas, plus notes that object key/value pattern validation will be removed without a direct replacement.

^{Written by Cursor Bugbot for commit 1c8896c. Configure here.}

[apify-service-account]

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[apify-service-account]

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[apify-service-account]

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[marcel-rbro]

I've committed some review fixes directly to the branch. FYI, the anchors to the deprecated info section did not actually work.

[apify-service-account]

Preview for this PR was built for commit bf7032fe and is ready at https://pr-2153.preview.docs.apify.com!

[apify-service-account]

Preview for this PR was built for commit bf7032fe and is ready at https://pr-2153.preview.docs.apify.com!

[mfori]

I've committed some review fixes directly to the branch. FYI, the anchors to the deprecated info section did not actually work.

Thanks!

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[mfori]

@marcel-rbro do you know why the build failed? It seems it's not related to this PR

Edit: ah, I see, it's this PR probably: #2270

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[marcel-rbro]

Build is working now, you can merge @mfori 👍

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Preview for this PR was built for commit 9d0327a3 and is ready at https://pr-2153.preview.docs.apify.com!