fix ci tests on windows: make clean before running test

.github/workflows/ci.yaml

@@ -5,9 +5,7 @@ jobs:
     strategy:
       matrix:
         version: ['1.22']
-        # windows-latest removed, see:
-        # https://github.com/rogpeppe/go-internal/issues/284
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
     name: Build
     runs-on: ${{ matrix.os }}
     steps:

Makefile

@@ -64,7 +64,7 @@ install: buildlocal
 clean:
 	rm -rf $(tool) releases coverage.out
 
-test:
+test: clean
 	go test ./... $(OPTS)
 
 singletest: