Address invalid date objects upon parsing response headers

Ever since GitHub migrated to its calendar versioning scheme, we've
been getting periodic errors when attempting to log rate limit info.
E.g.,

https://github.com/stdlib-js/stdlib/actions/runs/3810868110/jobs/6483195715

This seems to be due to missing header info. The workaround in this
commit is to default to an hour from now, according to machine local
time.

For GitHub docs which state that the rate limit headers should be
present, see https://docs.github.com/en/rest/overview/resources-in-the-rest-api?apiVersion=2022-11-28#rate-limiting.

Author: kgryte

lib/node_modules/@stdlib/_tools/github/create-repo/lib/data.js

@@ -33,6 +33,7 @@ var debug = logger( 'github-create-repo:data' );
 /**
 * Extracts data to be posted to a remote endpoint.
 *
+* @private
 * @param {string} name - repository name
 * @param {Object} opts - function options
 * @param {string} opts.desc - repository description

lib/node_modules/@stdlib/_tools/github/create-repo/lib/headers.js

@@ -33,6 +33,7 @@ var debug = logger( 'github-create-repo:headers' );
 /**
 * Returns request headers based on provided options.
 *
+* @private
 * @param {Object} opts - provided options
 * @param {string} [opts.token] - GitHub access token
 * @param {string} [opts.accept] - media type

lib/node_modules/@stdlib/_tools/github/create-repo/lib/ratelimit.js

@@ -18,17 +18,30 @@
 
 'use strict';
 
+// MODULES //
+
+var SEC_IN_HOUR = require( '@stdlib/constants/time/seconds-in-hour' );
+var now = require( '@stdlib/time/now' );
+
+
+// MAIN //
+
 /**
 * Extracts rate limit info from relevant HTTP response headers.
 *
+* @private
 * @param {Object} headers - HTTP response headers
 * @returns {Object} extracted headers
 */
 function info( headers ) {
+	var remaining = +headers[ 'x-ratelimit-remaining' ];
+	var limit = +headers[ 'x-ratelimit-limit' ];
+	var reset = +headers[ 'x-ratelimit-reset' ];
+	var t = now() + SEC_IN_HOUR;
 	return {
-		'limit': +headers[ 'x-ratelimit-limit' ],
-		'remaining': +headers[ 'x-ratelimit-remaining' ],
-		'reset': +headers[ 'x-ratelimit-reset' ]
+		'limit': ( limit === limit ) ? limit : t,
+		'remaining': ( remaining === remaining ) ? remaining : t,
+		'reset': ( reset === reset ) ? reset : t
 	};
 }