Remove Releng from go.mod, go.sum, and .changeset CODEOWNERS paths (#…

…14833)

* Remove Releng from go.mod and go.sum CODEOWNERS paths

* Remove releng as code owner on .changeset

* Make core a second owner for .changeset

.github/CODEOWNERS

@@ -5,7 +5,7 @@
 # Root
 * @smartcontractkit/foundations
 
-.changeset @smartcontractkit/releng @smartcontractkit/foundations
+.changeset @smartcontractkit/core @smartcontractkit/foundations
 
 # Chains
 /common @smartcontractkit/bix-framework
@@ -156,8 +156,8 @@ contracts/scripts/requirements.txt @smartcontractkit/prodsec-public
 .nvmrc @smartcontractkit/prodsec-public
 contracts/package.json @smartcontractkit/prodsec-public
 contracts/pnpm.lock @smartcontractkit/prodsec-public
-go.mod @smartcontractkit/prodsec-public @smartcontractkit/releng @smartcontractkit/foundations
-go.sum @smartcontractkit/prodsec-public @smartcontractkit/releng @smartcontractkit/foundations
+go.mod @smartcontractkit/prodsec-public @smartcontractkit/foundations
+go.sum @smartcontractkit/prodsec-public @smartcontractkit/foundations
 integration-tests/go.mod @smartcontractkit/prodsec-public @smartcontractkit/test-tooling-team @smartcontractkit/foundations
 integration-tests/go.sum @smartcontractkit/prodsec-public @smartcontractkit/test-tooling-team @smartcontractkit/foundations
 flake.nix @smartcontractkit/prodsec-public