Added CI workflow

.github/CODEOWNERS

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+* @CarletonComputerScienceSociety/core

.github/ci-config.ts

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+import type { Config } from "drizzle-kit";
+import dotenv from "dotenv";
+
+dotenv.config();
+
+export default {
+  schema: "./db/schema.ts",
+  out: "./db/migrations",
+  dialect: "sqlite",
+  driver: "better-sqlite",
+  dbCredentials: {
+    url: process.env.DATABASE_URL,
+  },
+  verbose: true,
+} as Config;

.github/workflows/workflow.yml

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+name: CI
+'on':
+  - push
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install modules
+      run: |
+        npm install
+        npm install dotenv-cli
+    - name: Run Prettier
+      run: |
+        npm run check
+    - name: Setup db
+      run: |
+        echo -e 'PORT=3000\nDATABASE_URL="./db/test.db"' > .env.test
+        npx dotenv -e .env.test -- drizzle-kit push --config=.github/ci-config.ts
+    - name: Run tests
+      run: |
+        npm run test