Properly set go version

Signed-off-by: ZIV NEVO <[email protected]>

Author: zivnevo

.github/workflows/test-output-validity.yml

@@ -23,7 +23,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491
       with:
-        go-version: 'stable'
+        go-version-file: ./go.mod
 
     - name: Build
       run: make