chore(ci): call linter in ci

.github/workflows/ci.yaml

@@ -42,6 +42,9 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-tests-
 
+    - name: Run linter
+      run: make vet
+
     - name: Run tests
       run: git --no-pager diff --exit-code HEAD~1 HEAD **/**.go templates/ || make tests
 

fs.go

@@ -43,7 +43,7 @@ func (f BootFS) IsSupported() bool {
 
 func (f BootFS) Validate() error {
 	if !f.IsSupported() {
-		fmt.Errorf("invalid boot filesystem: %s valid filesystems are: fat32, ext4", f)
+		return fmt.Errorf("invalid boot filesystem: %s valid filesystems are: fat32, ext4", f)
 	}
 	return nil
 }