Add a form GitHub issue template for bug reports

GitHub now supports forms as issue templates (currently in private beta).
Godot has been opted into this private beta, which makes this new feature
usable on the Godot repository.

Inspired by the ImageMagick form:

https://github.com/ImageMagick/ImageMagick/blob/main/.github/ISSUE_TEMPLATE/bug-report.yml

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,29 +0,0 @@
----
-name: Bug report
-about: Report a bug in Godot
-title: ''
-labels: ''
-assignees: ''
-
----
-<!-- Please search existing issues for potential duplicates before filing yours:
-https://github.com/godotengine/godot/issues?q=is%3Aissue
--->
-
-**Godot version:**
-<!-- Specify commit hash if using non-official build. -->
-
-
-**OS/device including version:**
-<!-- Specify GPU model, drivers, and the backend (GLES2, GLES3, Vulkan) if graphics-related. -->
-
-
-**Issue description:**
-<!-- What happened, and what was expected. -->
-
-
-**Steps to reproduce:**
-
-
-**Minimal reproduction project:**
-<!-- A small Godot project which reproduces the issue. Drag and drop a zip archive to upload it. -->

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,56 @@
+name: Bug report
+description: Report a bug in Godot
+body:
+
+- type: markdown
+  attributes:
+    value: |
+      - Read our [CONTRIBUTING.md guide](CONTRIBUTING.md#reporting-bugs) on reporting bugs.
+      - Write a descriptive issue title above.
+      - Search [open](https://github.com/godotengine/godot/issues) and [closed](https://github.com/godotengine/godot/issues?q=is%3Aissue+is%3Aclosed) issues to ensure it has not already been reported.
+      - Verify that you are using a [supported Godot version](https://docs.godotengine.org/en/stable/about/release_policy.html).
+
+- type: input
+  attributes:
+    label: Godot version
+    description: >
+      Specify the Git commit hash if using a development or non-official build.
+      If you use a custom build, please test if your issue is reproducible in official builds too.
+    placeholder: 3.3.stable, 4.0.dev (3041becc6)
+  validations:
+    required: true
+
+- type: input
+  attributes:
+    label: System information
+    description: |
+      Specify the OS version, and when relevant hardware information.
+      For graphics-related issues, specify the GPU model, driver version, and the rendering backend (GLES2, GLES3, Vulkan).
+    placeholder: Windows 10, GLES3, Intel HD Graphics 620 (27.20.100.9616)
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Issue description
+    description: |
+      Describe your issue briefly. What doesn't work, and how do you expect it to work instead?
+      You can include images or videos with drag and drop, and format code blocks or logs with <code>```</code> tags.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Steps to reproduce
+    description: |
+      List of steps or sample code that reproduces the issue. Having reproducible issues is a prerequisite for contributors to be able to solve them.
+      If you include a minimal reproduction project below, you can detail how to use it here.
+  validations:
+    required: true
+
+- type: textarea
+  attributes:
+    label: Minimal reproduction project
+    description: |
+      A small Godot project which reproduces the issue. Highly recommended to speed up troubleshooting.
+      Drag and drop a ZIP archive to upload it.