fix(Makefile): fix again the previous URL, the repo changed org

Signed-off-by: Theo Chatzimichos <[email protected]>

Makefile

@@ -169,7 +169,7 @@ CROSSPLANE_NAMESPACE = upbound-system
 # This target requires the following environment variables to be set:
 # - UPTEST_EXAMPLE_LIST, a comma-separated list of examples to test
 #   To ensure the proper functioning of the end-to-end test resource pre-deletion hook, it is crucial to arrange your resources appropriately. 
-#   You can check the basic implementation here: https://github.com/upbound/uptest/blob/main/internal/templates/03-delete.yaml.tmpl.
+#   You can check the basic implementation here: https://github.com/crossplane/uptest/blob/main/internal/templates/03-delete.yaml.tmpl.
 # - UPTEST_CLOUD_CREDENTIALS (optional), multiple sets of AWS IAM User credentials specified as key=value pairs.
 #   The support keys are currently `DEFAULT` and `PEER`. So, an example for the value of this env. variable is:
 #   DEFAULT='[default]