Improve the test workflow

Remove the go vet step. Because the go test command runs go vet,
there's no need to run go vet separately.

Remove the verbose flag from the go test step. The verbose
output provides little value and gets in the way of seeing the
actual problems.

.github/workflows/test.yml

@@ -55,13 +55,9 @@ jobs:
         neovim: true
         version: ${{ matrix.neovim-version }}
 
-    - name: go vet
-      run: |
-        go vet ./...
-
     - name: Test and take a coverage
       run: |
-        go test -v -race -count=1 -covermode=atomic -coverpkg=./... -coverprofile=coverage.out ./...
+        go test -race -count=1 -covermode=atomic -coverpkg=./... -coverprofile=coverage.out ./...
 
     - uses: codecov/codecov-action@v3
       with: