Update github workflows to use correct go version

.github/workflows/build.yaml

@@ -27,11 +27,6 @@ jobs:
     # needs: check-if-duplicate-action
     # if: needs.check-if-duplicate-action.outputs.should_skip != 'true'
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: true
-      matrix:
-        go: ["stable"] # could be a good idea to consider oldstable as well
-
     steps:
       - name: Check out code
         uses: actions/checkout@v3
@@ -39,8 +34,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v4
         with:
-          go-version: ${{ matrix.go }}
-          check-latest: true
+          go-version: "1.21.x"
 
       - name: Go Format
         run: gofmt -s -w . && git diff --exit-code

.github/workflows/integration_tests.yaml

@@ -50,6 +50,4 @@ jobs:
 
       - name: Run integration tests
         run: |
-          sudo su <<EOF
-          ./integration_test.sh
-          EOF
+          sudo env "PATH=$PATH" ./integration_test.sh