build: add linter workflow for Python and Go

.github/workflows/linter.yml

@@ -0,0 +1,23 @@
+name: Lint
+
+on: [push, pull_request]
+
+jobs:
+  py-black:
+    name: Python Formatter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: psf/black@stable
+  go-fmt:
+    name: Go Formatter
+    runs-on: ubuntu-latest
+    if: false # Pending activation
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.18
+      - name: Run go fmt
+        run: go fmt ./...