[gnome-builder] .gitlab: add bug issue template

[Christian Hergert <chergert src gnome org>]

commit ea5fa544af3ec6686b5519113c3890dea47d18e9
Author: Stan Grupp <fedora-topics-562353 protonmail com>
Date:   Sun Jul 31 21:03:01 2022 +0000

    .gitlab: add bug issue template

 .gitlab/issue_templates/Bug.md | 44 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
---
diff --git a/.gitlab/issue_templates/Bug.md b/.gitlab/issue_templates/Bug.md
new file mode 100644
index 000000000..05e53ed69
--- /dev/null
+++ b/.gitlab/issue_templates/Bug.md
@@ -0,0 +1,44 @@
+<!--
+    Please test if the issue has already been fixed in the Nightly version.
+
+    You can install the Nightly version in parallel with the regular version with these instructions:
+
+    1. Make sure that Flatpak is installed (see https://flatpak.org/setup )
+    2. Copy and run the following command in a Terminal:
+
+    flatpak install --user --from https://nightly.gnome.org/repo/appstream/org.gnome.Builder.flatpakref
+
+    3) The Nightly version can now be launched from Activities, or with this command: flatpak run 
org.gnome.Builder.Devel
+-->
+
+# Affected version
+- Nightly flatpak: Yes / No / Can't test it because <!-- Delete the unwanted answers -->
+- Other: <!-- Write the distribution you’re using and the version of the app. -->
+
+# Steps to reproduce
+<!--
+    Explain in detail the steps on how the issue can be reproduced.
+-->
+1.
+2.
+3.
+
+# Current behavior
+<!-- Describe the current behavior. -->
+
+
+# Expected behavior
+<!-- Describe the expected behavior. -->
+
+
+# Additional information
+<!--
+    Provide more information that could be relevant.
+    
+    If the issue is a crash, provide a stack trace following the steps in:
+    https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/GettingTraces
+-->
+
+
+<!-- Ignore the text under this line. -->
+/label ~"1. Bug"