deps: bump up zlib-ng to v2.2.4 (envoyproxy#39251)

This PR bumps up the version of `zlib-ng` to v2.2.4.

Signed-off-by: Rohit Agrawal <[email protected]>

Author: agrawroh

bazel/foreign_cc/zlib_ng.patch

@@ -441,8 +441,6 @@ def _com_github_zlib_ng_zlib_ng():
     external_http_archive(
         name = "com_github_zlib_ng_zlib_ng",
         build_file_content = BUILD_ALL_CONTENT,
-        patch_args = ["-p1"],
-        patches = ["@envoy//bazel/foreign_cc:zlib_ng.patch"],
     )
 
 # Boost in general is not approved for Envoy use, and the header-only

bazel/repositories.bzl

@@ -800,12 +800,12 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "zlib-ng",
         project_desc = "zlib fork (higher performance)",
         project_url = "https://github.com/zlib-ng/zlib-ng",
-        version = "2.0.7",
-        sha256 = "6c0853bb27738b811f2b4d4af095323c3d5ce36ceed6b50e5f773204fb8f7200",
+        version = "2.2.4",
+        sha256 = "a73343c3093e5cdc50d9377997c3815b878fd110bf6511c2c7759f2afb90f5a3",
         strip_prefix = "zlib-ng-{version}",
         urls = ["https://github.com/zlib-ng/zlib-ng/archive/{version}.tar.gz"],
         use_category = ["controlplane", "dataplane_core"],
-        release_date = "2023-03-17",
+        release_date = "2025-02-10",
         cpe = "N/A",
         license = "zlib",
         license_url = "https://github.com/zlib-ng/zlib-ng/blob/{version}/LICENSE.md",

bazel/repository_locations.bzl

@@ -185,6 +185,10 @@ TEST_F(ZlibCompressorImplTest, CallingChecksum) {
   compressor.compressThenFlush(buffer);
   expectValidFlushedBuffer(buffer);
 
+  // Add an empty buffer finish call to finalize the checksum
+  Buffer::OwnedImpl empty_buffer;
+  compressor.finish(empty_buffer);
+
   drainBuffer(buffer);
   EXPECT_TRUE(compressor.checksum() > 0);
 }

test/extensions/compression/gzip/compressor/zlib_compressor_impl_test.cc

@@ -104,8 +104,14 @@ TEST_F(ZlibDecompressorImplTest, CallingChecksum) {
       gzip_window_bits, memory_level);
   ASSERT_EQ(0, compressor.checksum());
 
+  // Create test data
   TestUtility::feedBufferWithRandomCharacters(compressor_buffer, 4096);
-  compressor.compress(compressor_buffer, Envoy::Compression::Compressor::State::Flush);
+
+  // Make a copy of the original data
+  std::string original_data = compressor_buffer.toString();
+
+  // Use Finish instead of Flush to ensure complete gzip data with checksum
+  compressor.compress(compressor_buffer, Envoy::Compression::Compressor::State::Finish);
   ASSERT_TRUE(compressor.checksum() > 0);
 
   ZlibDecompressorImpl decompressor{stats_scope_, "test.", 4096, 100};
@@ -114,11 +120,13 @@ TEST_F(ZlibDecompressorImplTest, CallingChecksum) {
 
   decompressor.decompress(compressor_buffer, decompressor_output_buffer);
 
-  drainBuffer(compressor_buffer);
-  drainBuffer(decompressor_output_buffer);
-
+  // Verify checksum match and is non-zero
+  EXPECT_TRUE(decompressor.checksum() > 0);
   EXPECT_EQ(compressor.checksum(), decompressor.checksum());
   ASSERT_EQ(0, decompressor.decompression_error_);
+
+  // Verify content matches original
+  EXPECT_EQ(original_data, decompressor_output_buffer.toString());
 }
 
 // Detect excessive compression ratio by compressing a long whitespace string