book: update sl

Updated via the `update-book.yml` GitHub workflow.

Author: dscho

external/book/content/book/sl/v2/_index.html

@@ -8,7 +8,7 @@
   language_code: sl
   front_page: true
   repository_url: https://github.com/progit/progit2-sl
-  sha: e68b0fbe8f570d0581467889950e8bdac1ac33ac
+  sha: e495f4c219ed05f600cce8d16946d602b3b08dc6
   ebook_pdf: https://github.com/progit/progit2-sl/releases/download/2.1.115/progit.pdf
   ebook_epub: https://github.com/progit/progit2-sl/releases/download/2.1.115/progit.epub
 page_title: Git - Book

external/book/sync/book-sl.sha

@@ -1 +1 @@
-e68b0fbe8f570d0581467889950e8bdac1ac33ac
+e495f4c219ed05f600cce8d16946d602b3b08dc6