chore: use repo metadata to populate nodejs CODEOWNERS (#283)

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Source-Link: googleapis/synthtool@318e351

packages/google-devtools-containeranalysis/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-containeranalysis.git",
-        "sha": "5a49aa662b45b82e42b97dbf80e19aa4bfdf04e5"
+        "sha": "ebfa6dc70fdc9d05256950327f91d2a6fbb82795"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "57c23fa5705499a4181095ced81f0ee0933b64f6"
+        "sha": "318e351e26ba65b2b3cfa3f61b3b64e3540c3525"
       }
     }
   ],