Updated Github Action versions.

.github/workflows/t1net.yml

@@ -16,34 +16,34 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
-          go-version: '^1.16'
+          go-version-file: 'go.mod'
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup golangci-lint
-        uses: golangci/golangci-lint-action@v3.3.1
+        uses: golangci/golangci-lint-action@v3.7.0
         with:
-          version: v1.50.1
+          version: v1.55.1
           args: --verbose
   test:
     needs: lint
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        go: [1.16, 1.17, 1.18, 1.19]
+        go: [1.20, 1.21]
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     env:
       GOPROXY: https://proxy.golang.org
     steps:
       - name: Set up Go ${{ matrix.go }}
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
 
       - name: Checkout Code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.ref }}