ci: add Control Tower prcheck to the PR check + reusable step templates#17885

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PawelWMS:pawelwi/pr_check_sources_uploads

Commits on Jul 1, 2026

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ci: rename compute_change_set.sh commit args to --from/--to

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ci: inline compute_changed.sh into compute_change_set.sh

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ci: extract common-steps into granular parameterized step templates

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ci: recompose common-steps from the granular step templates

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ci: add Control Tower prcheck to the PR check and compose shared templates

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ci: rename PR package-build check to the generic pr-check-ct pipeline

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ci: remove the standalone source-upload pipeline

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ci: address PR #17885 review comments

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Commits on Jul 2, 2026