Fix GitHub Actions script

Use pre-baked project checks to solve existing GH action's use of
deprecated env setting method.

Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>

.github/workflows/ci.yml

@@ -13,46 +13,12 @@ jobs:
     timeout-minutes: 5
     steps:
 
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.13
-      id: go
-
-    - name: Setup Go binary path
-      shell: bash
-      run: |
-        echo "::set-env name=GOPATH::${{ github.workspace }}"
-        echo "::add-path::${{ github.workspace }}/bin"
-
     - name: Check out code
       uses: actions/checkout@v2
       with:
         path: src/github.com/containerd/containerd.io
         fetch-depth: 25
 
-    - name: Checkout project
-      uses: actions/checkout@v2
+    - uses: containerd/project-checks@v1.0.1
       with:
-        repository: containerd/project
-        path: src/github.com/containerd/project
-
-    - name: Install dependencies
-      env:
-        GO111MODULE: off
-      run: |
-        go get -u github.com/vbatts/git-validation
-
-    - name: Check DCO/whitespace/commit message
-      env:
-        GITHUB_COMMIT_URL: ${{ github.event.pull_request.commits_url }}
-        DCO_VERBOSITY: "-q"
-        DCO_RANGE: ""
-      working-directory: src/github.com/containerd/containerd.io
-      run: |
-        if [ -z "${GITHUB_COMMIT_URL}" ]; then
-          DCO_RANGE=$(jq -r '.before +".."+ .after' ${GITHUB_EVENT_PATH})
-        else
-          DCO_RANGE=$(curl ${GITHUB_COMMIT_URL} | jq -r '.[0].parents[0].sha +".."+ .[-1].sha')
-        fi
-        ../project/script/validate/dco
+        working-directory: src/github.com/containerd/containerd.io

Makefile

@@ -1,3 +1,17 @@
+#   Copyright The containerd Authors.
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+
+#       http://www.apache.org/licenses/LICENSE-2.0
+
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
 clean:
 	rm -rf public resources