[ci-skip] use beta issue forms for issue templates

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug Report
+description: File a bug report
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before reporting a crash here, please make sure you are on the latest version of Purpur.
+
+  - type: textarea
+    attributes:
+      label: Timings link
+      description: |
+        We ask that all timings are a link, not a screenshot. Screenshots inhibit our ability to figure out the real cause of the issue.
+        Example: https://timings.pl3x.net/?id=4cd655d32ad445aa9063f2130ae3b794
+    validations:
+      required: false
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: What you expected to see.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Observed/Actual behavior
+      description: What you actually saw.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps/models to reproduce
+      description: This may include a build schematic, a video, or detailed instructions to help reconstruct the issue.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Purpur version
+      description: |
+        Run `/version` on your server and **paste** the full, unmodified output here.
+        "latest" is *not* a version; we require the output of `/version` so we can adequately track down the issue.
+        Additionally, do NOT provide a screenshot, you MUST paste the entire output.
+        <details>
+        <summary>Example</summary>
+
+        ```
+        > version
+        [18:58:15 INFO]: Checking version, please wait...
+        [18:58:15 INFO]: This server is running Purpur version git-Purpur-1126 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
+        [18:58:15 INFO]: You are running the latest version
+        [18:58:15 INFO]: Previous version: git-Purpur-1120 (MC: 1.16.5)
+        ```
+
+        </details>
+    validations:
+      required: true
+
+  - type: checkboxes
+    attributes:
+      label: Agreements
+      description: Please agree to the following.
+      options:
+        - label: I am running the latest version of Purpur available from https://purpur.pl3x.net/downloads.
+          required: true
+        - label: I have searched for and ensured there isn't already an open issue regarding this.
+          required: true
+        - label: My version of Minecraft is supported by Purpur.
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: |
+        Please include other helpful information below.
+        The more information we receive, the quicker and more effective we can be at finding the solution to the issue.
+    validations:
+      required: false