fix(github): check rate limit again after sleeping (#4152)

also ensure sleep > 0

---------

Signed-off-by: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>

internal/client/github.go

@@ -75,8 +75,15 @@ func (c *githubClient) checkRateLimit(ctx *context.Context) {
 		return
 	}
 	sleep := limits.Core.Reset.UTC().Sub(time.Now().UTC())
+	if sleep <= 0 {
+		// it seems that sometimes, after the rate limit just reset, it might
+		// still get <100 remaining and a reset time in the past... in such
+		// cases we can probably sleep a bit more before trying again...
+		sleep = 15 * time.Second
+	}
 	log.Warnf("token too close to rate limiting, will sleep for %s before continuing...", sleep)
 	time.Sleep(sleep)
+	c.checkRateLimit(ctx)
 }
 
 func (c *githubClient) GenerateReleaseNotes(ctx *context.Context, repo Repo, prev, current string) (string, error) {