Fix dependabot errors

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

node_modules/@octokit/graphql/dist-src/error.js

@@ -1,21 +1,21 @@
 function _buildMessageForResponseErrors(data) {
-    return (`Request failed due to following response errors:\n` +
-        data.errors.map((e) => ` - ${e.message}`).join("\n"));
+  return `Request failed due to following response errors:
+` + data.errors.map((e) => ` - ${e.message}`).join("\n");
 }
-export class GraphqlResponseError extends Error {
-    constructor(request, headers, response) {
-        super(_buildMessageForResponseErrors(response));
-        this.request = request;
-        this.headers = headers;
-        this.response = response;
-        this.name = "GraphqlResponseError";
-        // Expose the errors and response data in their shorthand properties.
-        this.errors = response.errors;
-        this.data = response.data;
-        // Maintains proper stack trace (only available on V8)
-        /* istanbul ignore next */
-        if (Error.captureStackTrace) {
-            Error.captureStackTrace(this, this.constructor);
-        }
+class GraphqlResponseError extends Error {
+  constructor(request, headers, response) {
+    super(_buildMessageForResponseErrors(response));
+    this.request = request;
+    this.headers = headers;
+    this.response = response;
+    this.name = "GraphqlResponseError";
+    this.errors = response.errors;
+    this.data = response.data;
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, this.constructor);
     }
+  }
 }
+export {
+  GraphqlResponseError
+};