declare min Go version to be v1.21 (#207)

.github/workflows/ci-aqua-security-trivy-tests.yml

@@ -25,20 +25,15 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - name: Get Go Version
-        run: |
-          #!/bin/bash
-          GOVERSION=$({ [ -f .go-version ] && cat .go-version; })
-          echo "GOVERSION=$GOVERSION" >> $GITHUB_ENV
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: ${{ env.GOVERSION }}
+          go-version-file: go.mod
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@master
         with:
           scan-type: 'fs'
-          scan-ref: '.'          
+          scan-ref: '.'
           format: 'sarif'
           output: 'trivy-results.sarif'
       - name: Upload Trivy scan results to GitHub Security tab

.github/workflows/ci-dgo-tests.yml

@@ -28,16 +28,10 @@ jobs:
         with:
           path: dgo
           repository: dgraph-io/dgo
-      - name: Get Go Version
-        run: |
-          #!/bin/bash
-          cd dgraph
-          GOVERSION=$({ [ -f .go-version ] && cat .go-version; })
-          echo "GOVERSION=$GOVERSION" >> $GITHUB_ENV
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: ${{ env.GOVERSION }}
+          go-version-file: dgo/go.mod
       - name: Make Linux Build and Docker Image
         run: cd dgraph && make docker-image
       - name: Move dgraph binary to gopath

.github/workflows/ci-golang-lint.yml

@@ -20,15 +20,10 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
-      - name: Get Go Version
-        run: |
-          #!/bin/bash
-          GOVERSION=$({ [ -f .go-version ] && cat .go-version; })
-          echo "GOVERSION=$GOVERSION" >> $GITHUB_ENV
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: ${{ env.GOVERSION }}
+          go-version-file: go.mod
       - name: golang-lint
         env:
           # prevent OOM

go.mod

@@ -1,6 +1,8 @@
 module github.com/dgraph-io/dgo/v240
 
-go 1.22.6
+go 1.21
+
+toolchain go1.23.2
 
 require (
 	github.com/gogo/protobuf v1.3.2