fix(repo): Change "backports.mjs" to "backport.mjs" in PUBLISH docs (#2108)

Author: nikospapcom

.changeset/empty-jars-press.md

@@ -0,0 +1,2 @@
+---
+---

docs/PUBLISH.md

@@ -49,7 +49,7 @@ If a PR got merged into `main` that should also be released in older versions (e
 Duplicate the `.env.example` file inside `scripts` and rename it to `.env`. Fill out the `GITHUB_ACCESS_TOKEN` variable. Afterwards, you'll be able to run the CLI like so:
 
 ```shell
-node backports.mjs release/v4 1234
+node backport.mjs release/v4 1234
 ```
 
 The command above will backport the PR `1234` to the branch `release/v4`.