ci: setup go env in metadata workflow (#337)

Fixes issue in metadata workflow where golangci-lint install fails because $GOPATH is not set.

.github/workflows/metadata.yml

@@ -12,6 +12,12 @@ jobs:
         uses: actions/setup-go@37335c7bb261b353407cff977110895fa0b4f7d8 # v2.1.3
         with:
           go-version: 1.19.x
+      - name: Configure Go Environment
+        run: |
+          echo GOPATH=${{ runner.workspace }} >> $GITHUB_ENV
+          echo ${{ runner.workspace }}/bin >> $GITHUB_PATH
+      - name: Go Environment
+        run: go env
       - name: Checkout code
         uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
         with: