Do not generate a mock for the deepCopyObject constraint

lazycopy.go introduces deepCopyObject, a generic type constraint rather
than a collaborator, and the package's "all: true" mockery config picks
it up and emits a large mock that nothing can use. Switch the package to
an explicit include/exclude regex pair so every other interface is still
discovered automatically while deepCopyObject is skipped.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

.mockery.yaml

@@ -14,4 +14,8 @@ packages:
       all: true
   github.com/actions/actions-runner-controller/controllers/actions.github.com:
     config:
-      all: true
+      all: false
+      include-interface-regex: ".*"
+      # deepCopyObject is a generic type constraint, not a collaborator, so it
+      # must not be mocked.
+      exclude-interface-regex: "^deepCopyObject$"