update owners

CODEOWNERS

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+# CODEOWNERS
+# See https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+#
+# These owners will be the default owners for everything in the repo.
+# Unless a later match takes precedence, they will be requested for
+# review when someone opens a pull request.
+
+* @stevendborrelli @humoflife

OWNERS.md

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+<!--
+SPDX-FileCopyrightText: 2023 The Crossplane Authors <https://crossplane.io>
+
+SPDX-License-Identifier: CC-BY-4.0
+-->
+
+# OWNERS
+
+This page lists all maintainers for **this** repository. Each repository in the
+[Crossplane organization](https://github.com/crossplane/) will list their
+repository maintainers in their own `OWNERS.md` file.
+
+## Maintainers
+
+* Steven Borrelli <steven@upbound.io> ([stevendborrelli](https://github.com/stevendborrelli))
+* Jason Tang <jasont@upbound.io> ([jastang](https://github.com/jastang))
+
+See [CODEOWNERS](./CODEOWNERS) for automatic PR assignment.
+