actions: use 1.15 for release, 1.15 and 1.16 for tests

.github/workflows/build-test.yml

@@ -1,36 +1,28 @@
 name: Run Tests
-
 on:
   push:
     branches:
       - 'develop'
-
   pull_request:
     branches:
       - 'develop'
-
 jobs:
   build:
     strategy:
       fail-fast: false
-
       matrix:
         os: [ ubuntu-20.04 ]
-        go: [ 1.15.6 ]
+        go: [ '^1.15', '^1.16' ]
         goos: [ linux ]
         goarch: [ amd64, arm64 ]
-
     runs-on: ${{ matrix.os }}
-
     steps:
       - name: Code Checkout
         uses: actions/checkout@v2
-
       - name: Setup Go v${{ matrix.go }}
         uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.go }}
-
       - name: Print Environment
         id: env
         run: |
@@ -44,7 +36,6 @@ jobs:
           echo "::set-output name=version_tag::${GITHUB_REF/refs\/tags\//}"
           echo "::set-output name=short_sha::$(git rev-parse --short HEAD)"
           echo "::set-output name=go_cache::$(go env GOCACHE)"
-
       - name: Build Cache
         uses: actions/cache@v2
         with:
@@ -52,11 +43,9 @@ jobs:
           key: ${{ runner.os }}-${{ matrix.go }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-${{ matrix.go }}-go
-
       - name: Get Dependencies
         run: |
           go get -v -t -d ./...
-
       - name: Build
         env:
           GOOS: ${{ matrix.goos }}
@@ -67,13 +56,11 @@ jobs:
           go build -v -trimpath -ldflags="-s -w -X ${SRC_PATH}/system.Version=dev-${GIT_COMMIT:0:7}" -o build/wings_${{ matrix.goos }}_${{ matrix.goarch }} wings.go
           upx build/wings_${{ matrix.goos }}_${{ matrix.goarch }}
           chmod +x build/wings_${{ matrix.goos }}_${{ matrix.goarch }}
-
       - name: Test
         run: go test ./...
-
       - name: Upload Artifact
         uses: actions/upload-artifact@v2
-        if: ${{ github.ref == 'refs/heads/develop' || github.event_name == 'pull_request' }}
+        if: ${{ matrix.go == '^1.15' && (github.ref == 'refs/heads/develop' || github.event_name == 'pull_request') }}
         with:
           name: wings_${{ matrix.goos }}_${{ matrix.goarch }}
           path: build/wings_${{ matrix.goos }}_${{ matrix.goarch }}