test: fix "fs.rmSync is not a function" for old node.js versions

add simplest polyfill for `fs.rmSync(path, {recursive: true})`

test/rm.js

@@ -0,0 +1,20 @@
+const fs = require('fs')
+const path = require('path')
+
+/** recursively delete files, symlinks (without following them) and dirs */
+module.exports = function rmRecSync (pth) {
+  pth = path.normalize(pth)
+
+  rm(pth)
+
+  function rm (pth) {
+    const pathStat = fs.statSync(pth)
+    // trick with lstat is used to avoid following symlinks (especially junctions on windows)
+    if (pathStat.isDirectory() && !fs.lstatSync(pth).isSymbolicLink()) {
+      fs.readdirSync(pth).forEach((nextPath) => rm(path.join(pth, nextPath)))
+      fs.rmdirSync(pth)
+    } else {
+      fs.unlinkSync(pth)
+    }
+  }
+}

test/test-find-python.js

@@ -309,6 +309,8 @@ test('find-python', { buffered: true }, (t) => {
 
       // using "junction" to avoid permission error
       fs.symlinkSync(paths.pythonDir, path.resolve(paths.testDir, testString), 'junction')
+      console.log('🚀 ~ file: test-find-python.js ~ line 312 ~ awaitt.test ~ path.resolve(paths.testDir, testString)', path.resolve(paths.testDir, testString))
+      console.log('🚀 ~ file: test-find-python.js ~ line 312 ~ awaitt.test ~ paths.pythonDir', paths.pythonDir)
 
       const { pythonFinderInstance, result } = promisifyPythonFinder(path.resolve(paths.testDir, 'python'))
 
@@ -322,7 +324,12 @@ test('find-python', { buffered: true }, (t) => {
     })
 
     // remove fixture
-    fs.rmSync(paths.testDir, { recursive: true })
+    if (fs.rmSync) {
+      fs.rmSync(paths.testDir, { recursive: true })
+    } else {
+      //
+      require('./rm.js')(paths.testDir)
+    }
 
     t.end()
   })