Fix incorrect remote path arg to APIs in windows on bricks sync (#101)

Integration tests testing sync on ubuntu are green:
<img width="794" alt="Screenshot 2022-11-25 at 2 05 11 PM"
src="https://user-images.githubusercontent.com/88374338/203991936-f0478c35-5d97-429b-b373-f050d9a90cff.png">

@fjakobs tested this on windows manually

Author: shreyas-goenka

cmd/sync/watchdog.go

@@ -44,10 +44,10 @@ const MaxRequestsInFlight = 20
 //
 // The workspace file system backend strips .py from the file name if the python
 // file is a notebook
-func putFile(ctx context.Context, path string, content io.Reader) error {
+func putFile(ctx context.Context, remotePath string, content io.Reader) error {
 	wsc := project.Get(ctx).WorkspacesClient()
 	// workspace mkdirs is idempotent
-	err := wsc.Workspace.MkdirsByPath(ctx, filepath.Dir(path))
+	err := wsc.Workspace.MkdirsByPath(ctx, path.Dir(remotePath))
 	if err != nil {
 		return fmt.Errorf("could not mkdir to put file: %s", err)
 	}
@@ -57,7 +57,7 @@ func putFile(ctx context.Context, path string, content io.Reader) error {
 	}
 	apiPath := fmt.Sprintf(
 		"/api/2.0/workspace-files/import-file/%s?overwrite=true",
-		strings.TrimLeft(path, "/"))
+		strings.TrimLeft(remotePath, "/"))
 	return apiClient.Do(ctx, http.MethodPost, apiPath, content, nil)
 }