fix: close the test compression stream (#1865)

Author: inverted-capital

js/isomorphic-git/index.cjs

@@ -4912,14 +4912,14 @@ async function browserDeflate(buffer) {
 function testCompressionStream() {
   try {
     const cs = new CompressionStream('deflate');
+    cs.writable.close();
     // Test if `Blob.stream` is present. React Native does not have the `stream` method
     const stream = new Blob([]).stream();
     stream.cancel();
-    return !!cs
+    return true
   } catch (_) {
-    // no bother
+    return false
   }
-  return false
 }
 
 async function _writeObject({

js/isomorphic-git/index.js

@@ -4906,14 +4906,14 @@ async function browserDeflate(buffer) {
 function testCompressionStream() {
   try {
     const cs = new CompressionStream('deflate');
+    cs.writable.close();
     // Test if `Blob.stream` is present. React Native does not have the `stream` method
     const stream = new Blob([]).stream();
     stream.cancel();
-    return !!cs
+    return true
   } catch (_) {
-    // no bother
+    return false
   }
-  return false
 }
 
 async function _writeObject({