Add build.yml workflow

.github/workflows/build.yml

@@ -0,0 +1,25 @@
+name: Build & Test !charity Bot
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.10"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Test with unittest
+        run: |
+          python -m unittest tests/test.py