Fix dependabot errors

I explicitly had to downgrade "@octokit/plugin-retry" to "^6.0.0". Other
dependencies were upgraded.

node_modules/@octokit/endpoint/dist-src/util/omit.js

@@ -1,8 +1,12 @@
-export function omit(object, keysToOmit) {
-    return Object.keys(object)
-        .filter((option) => !keysToOmit.includes(option))
-        .reduce((obj, key) => {
-        obj[key] = object[key];
-        return obj;
-    }, {});
+function omit(object, keysToOmit) {
+  const result = { __proto__: null };
+  for (const key of Object.keys(object)) {
+    if (keysToOmit.indexOf(key) === -1) {
+      result[key] = object[key];
+    }
+  }
+  return result;
 }
+export {
+  omit
+};