Merge pull request #7783 from ninjadq/fix_default_alias_issue_in_notary

Fix issue caused by notary default_alias

make/photon/prepare/templates/notary/signer-config.postgres.json.jinja

@@ -10,6 +10,6 @@
     "storage": {
         "backend": "postgres",
 			"db_url": "postgres://{{notary_signer_db_username}}:{{notary_signer_db_password}}@{{notary_signer_db_host}}:{{notary_signer_db_port}}/{{notary_signer_db_name}}?sslmode={{notary_signer_db_sslmode}}",
-		    "default_alias": "{{alias}}"
+		    "default_alias": "defaultalias"
     }
 }