chore: test multiple go versions in CI

Signed-off-by: Arjun Raja Yogidas <arjunry@amazon.com>

Author: coderbirju

.github/workflows/build.yml

@@ -21,8 +21,6 @@ on:
       - 'ztoc/**' # Includes flatbuf + C files
       - '!benchmark/**'
 
-env:
-  GO_VERSION: '1.25.7'
 
 jobs:
   setup:
@@ -34,12 +32,13 @@ jobs:
     strategy:
       matrix:
         os: ${{ fromJSON(needs.setup.outputs.available-runners) }}
+        go-version: ['1.25.7', '1.26.0']
     timeout-minutes: 15
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
-          go-version: ${{ env.GO_VERSION }}
+          go-version: ${{ matrix.go-version }}
       - name: Install zlib static on AL2 ARM instances
         if: matrix.os == 'al2-arm'
         run: dnf install zlib-static.aarch64 -y
@@ -56,14 +55,15 @@ jobs:
       fail-fast: false
       matrix:
         os: ${{ fromJSON(needs.setup.outputs.available-runners) }}
+        go-version: ['1.25.7', '1.26.0']
         containerd: ["1.6.39", "1.7.29", "2.0.7", "2.1.5"]
     env:
       DOCKER_BUILD_ARGS: "CONTAINERD_VERSION=${{ matrix.containerd }}"
     steps:
       - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
-          go-version: ${{ env.GO_VERSION }}
+          go-version: ${{ matrix.go-version }}
       - name: Install zlib static on AL2 ARM instances
         if: matrix.os == 'al2-arm'
         run: dnf install zlib-static.aarch64 -y