refactor: Build/Test Workflows

This breaks apart our build/test workflows to make them reusable. With the
aim of being able to reduce deplication, improve maintainability, and efficiency
of how the workflows run.

.github/workflows/build.yml

@@ -28,10 +28,9 @@ jobs:
           name: ${{ inputs.configuration }}-repack-unsigned
           path: _build/repack/
           retention-days: 7
-        if: github.event_name == 'workflow_call'
       - uses: actions/upload-artifact@v4
         with:
           name: ${{ inputs.configuration }}-out
           path: _build/out/
           retention-days: 1
-        if: github.event_name == 'workflow_call'
+      - run: echo "${{ toJson(github) }}"

.github/workflows/test.yml

@@ -77,7 +77,7 @@ jobs:
     steps:
       - name: Send Discord Notification
         env:
-          JOB_STATUS: ${{ job.status }}
+          JOB_STATUS: failure
           WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK }}
           HOOK_OS_NAME: ${{ runner.os }}
           WORKFLOW_NAME: ${{ github.workflow }}