Update github URL references (#15705)

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -9,7 +9,7 @@ body:
 
         1. **Please update Luanti to the latest stable or dev version** before submitting bug reports. Make sure the bug is still reproducible on the latest version.
         2. This page is for reporting the bugs of **the engine itself**. For bugs in a particular game, please [search for the game in the ContentDB](https://content.luanti.org/packages/?type=game) and submit a bug report in their issue trackers.
-            * For example, you can submit issues about the Minetest Game [in its own repository](https://github.com/minetest/minetest_game/issues).
+            * For example, you can submit issues about the Minetest Game [in its own repository](https://github.com/luanti-org/minetest_game/issues).
         3. Please provide as many details as possible for us to spot the problem quicker.
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