Add depndabot and ci job for running go tests. Ensure go versions are consistent

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/go-test.yml

@@ -0,0 +1,24 @@
+name: go-test
+on:
+  push:
+    branches:
+      - 'main'
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  go-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Unshallow
+        run: git fetch --prune --unshallow
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.16
+      - name: Run go tests
+        run: go test -race -count 1 ./... -timeout=3m

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.17
+          go-version: 1.16
       - name: Describe plugin
         id: plugin_describe
         run: echo "::set-output name=api_version::$(go run . describe | jq -r '.api_version')"