ci: fix a typo

.github/workflows/ci.yml

@@ -42,12 +42,12 @@ jobs:
       run: ./v test-fixed
     - name: Test building v tools
       run: ./v build-tools
-    - name: ./v vet
+    - name: v vet
       run: |
-        v vet vlib/v/parser
-        v vet vlib/v/ast
-        v vet vlib/v/gen/cgen.v
-        v vet vlib/v/checker
+        ./v vet vlib/v/parser
+        ./v vet vlib/v/ast
+        ./v vet vlib/v/gen/cgen.v
+        ./v vet vlib/v/checker
 #    - name: Test v binaries
 #      run: ./v -silent build-vbinaries