Deprecate the Notary image

notary/README-short.txt

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-Notary server and signer cooperatively handle signing and distribution of notary repositories.
+DEPRECATED; Notary server and signer cooperatively handle signing and distribution

notary/deprecated.md

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+The [upstream Notary project](https://github.com/notaryproject/notary) was archived as of July 30, 2025. For more information, see [notaryproject/.github#70](https://github.com/notaryproject/.github/issues/70).