read go version from file

Author: skyrpex

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v6
       with:
-        go-version: '1.26.2'
+        go-version-file: go.mod
 
     - name: Run tests
       run: make tests-with-docker
@@ -31,7 +31,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v6
       with:
-        go-version: '1.26.2'
+        go-version-file: go.mod
 
     - name: Build
       env: