Add coverage (#914)

Reviewed-on: https://code.forgejo.org/forgejo/end-to-end/pulls/914
Reviewed-by: earl-warren <earl-warren@noreply.code.forgejo.org>
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>

.forgejo/upload-coverage/action.yml

@@ -0,0 +1,11 @@
+inputs:
+  scope:
+    description: 'Scope of the coverage'
+
+runs:
+  using: "composite"
+  steps:
+      - uses: actions/upload-artifact@v3
+        with:
+          name: coverage-${{ inputs.scope }}
+          path: /tmp/forgejo-end-to-end/coverage