Update to latest quiche code (#647)

Motivation:

We did not update quiche for some time

Modifications:

Update to latest sha

Result:

Use latest quiche code

codec-native-quic/pom.xml

@@ -56,7 +56,7 @@
     <quicheHomeIncludeDir>${quicheHomeDir}/quiche/include</quicheHomeIncludeDir>
     <quicheRepository>https://github.com/cloudflare/quiche</quicheRepository>
     <quicheBranch>master</quicheBranch>
-    <quicheCommitSha>5b1e3d286411e2cc411f8dc6d6ff1ee40f1bd026</quicheCommitSha>
+    <quicheCommitSha>21704e03366562a769488471cf4a65f63a12aaa9</quicheCommitSha>
     <generatedSourcesDir>${project.build.directory}/generated-sources</generatedSourcesDir>
     <templateDir>${project.build.directory}/template</templateDir>
     <cargoTarget />