ci: add go {vet,build} job

.github/workflows/go_build.yml

@@ -0,0 +1,28 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+jobs:
+  go-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: 1.20.5
+
+      - name: Fetch deps
+        run: |
+          # Hosted with Git LFS.  See ./contrib/deps-bundle.sh
+          wget -q https://github.com/firedancer-io/radiance/raw/deps/deps-bundle.tar.zst
+          tar -I zstd -xf deps-bundle.tar.zst
+
+      - name: Vet
+        run: source activate-opt && go vet ./...
+
+      - name: Build
+        run: source activate-opt && go build -v ./cmd/radiance

contrib/deps-bundle.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-# Packs a bundle of dependency files.
+# Pack a bundle of dependency files
 
 cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"/..
 
@@ -12,3 +12,5 @@ tar -Izstd -cf deps-bundle.tar.zst \
   ./opt/{include,lib,lib64}
 
 echo "[+] Created deps-bundle.tar.zst"
+
+# Now you can commit this file to the deps branch of the repository