minor #1400 Update the database contents (javiereguiluz)

This PR was squashed before being merged into the main branch.

Discussion
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Update the database contents

When you browse this app, you see this:

<img width="723" alt="database-before" src="https://user-images.githubusercontent.com/73419/218479596-897e5859-16ed-4fa0-a5c2-4e5e29eb8fec.png">

These super old dates hurt the image and reputation of the project, because it looks like the project is no longer maintained.

So, let's regenerate the database contents to update the blog post dates:

<img width="901" alt="database-after" src="https://user-images.githubusercontent.com/73419/218479814-0158ce4f-7c6b-4d52-811e-ec3e9c1307ff.png">

Commits
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6a35fe4 Update the database contents

src/DataFixtures/AppFixtures.php

@@ -146,7 +146,7 @@ private function getPostData(): array
                 $this->slugger->slug($title)->lower(),
                 $this->getRandomText(),
                 $this->getPostContent(),
-                new \DateTime('now - '.$i.'days'),
+                (new \DateTime('now - '.$i.'days'))->setTime(random_int(8, 17), random_int(7, 49), random_int(0, 59)),
                 // Ensure that the first post is written by Jane Doe to simplify tests
                 $user,
                 $this->getRandomTags(),