feat: add new template to GitHub (#3101)

.github/ISSUE_TEMPLATE/oss-gg-hack-submission.yml

@@ -0,0 +1,33 @@
+name: oss.gg hack submission 🕹️
+description: "Submit your contribution for the for the oss.gg hackathon"
+title: "[oss.gg hackathon]"
+labels: 🕹️ oss.gg, player submission
+assignees: []
+body:
+  - type: textarea
+    id: contribution-name
+    attributes:
+      label: What side quest or challenge are you solving?
+      description: Add the name of the side quest or challenge.
+    validations:
+      required: true
+  - type: textarea
+    id: points
+    attributes:
+      label: Points
+      description: How many points are assigned to this contribution?
+    validations:
+      required: true
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: What's the task your performed?
+    validations:
+  - type: textarea
+    id: proof
+    attributes:
+      label: Provide proof that you've completed the task
+      description: Screenshots, loom recordings, links to the content you shared or interacted with.
+    validations:
+      required: true