bump golang versions to use v1.20 and v1.21

Signed-off-by: Guillaume Lours <[email protected]>

Author: glours

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check license
         run: DOCKER_BUILDKIT=1 make check-license
       - name: Check schema
@@ -20,15 +20,15 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: ['1.20', '1.19']
+        go-version: ['1.21', '1.20']
         platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     timeout-minutes: 10
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Go
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v4
       with:
         go-version: ${{ matrix.go-version }}
         check-latest: true

go.mod

@@ -1,6 +1,6 @@
 module github.com/compose-spec/compose-go/v2
 
-go 1.19
+go 1.20
 
 require (
 	github.com/distribution/reference v0.5.0