Update actions.yml

Author: osamingo

.github/workflows/actions.yml

@@ -11,21 +11,21 @@ on:
 jobs:
   lint:
     name: Lint
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: golangci/golangci-lint-action@v3
         with:
           version: v1.52.2
   test:
     name: Test
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.18.x', '1.19.x' ]
+        go: [ 'stable', 'oldstable' ]
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
       - run: go test -race -covermode=atomic -coverprofile=coverage.txt ./...