[ci] Configure action/setup-go to read golang version from go.mod (#3825)

Author: maru-ava

.github/actions/set-go-version-in-env/action.yml

@@ -16,9 +16,7 @@ description: 'Install a go toolchain with project defaults'
 runs:
   using: composite
   steps:
-    - name: Set the project Go version in the environment
-      uses: ./.github/actions/set-go-version-in-env
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '${{ env.GO_VERSION }}'
+        go-version-file: go.mod