Ci tweaks, automatically label config changes (#624)

* Combine CI workflows into one workflow file

* Apply configuration label to PRs made against config files with Github's `labeler`

Author: grahamalama

.github/labeler.yml

@@ -0,0 +1,2 @@
+configuration:
+- config/*

.github/workflows/ci.yaml

@@ -0,0 +1,41 @@
+name: Run CI checks
+
+on: pull_request
+
+jobs:
+  run_lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install poetry
+        run: pipx install poetry
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+      - name: Install dependencies
+        run: poetry install
+      - run: bin/lint.sh
+  run_test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install poetry
+        run: pipx install poetry
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+      - name: Install dependencies
+        run: poetry install
+      - name: Run tests
+        run: bin/test.sh
+  review-dependabot-pr:
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Enable Dependabot automation
+        uses: mozilla/syseng-pod/actions/dependabot-automerge@main