ci: fix Go version selection

k8s v1.29 depends on Go 1.21.3 or later. Without an explicit
go-version-file: go.mod with 'go 1.21.3' we are seeing failures
in different CI steps.

Make sure all setup-go workflows use Go version from go.mod.

Signed-off-by: Mikko Ylinen <[email protected]>

Author: mythi

.github/workflows/lib-build.yaml

@@ -42,6 +42,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+          check-latest: true
       - run: make -e vendor
       - name: Build image
         env:

.github/workflows/lib-publish.yaml

@@ -41,6 +41,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+          check-latest: true
       - run: make -e vendor
       - name: Build image
         env:

.github/workflows/lib-validate.yaml

@@ -74,6 +74,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
+        with:
+          go-version-file: go.mod
+          check-latest: true
       - name: Install envtest and k8s control plane
         run: |
           go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest