Fix arm64 name

Author: liujisi

protoc-artifacts/build-zip.sh

@@ -19,7 +19,7 @@ included. Each invocation will create 6 zip packages:
   dist/<TARGET>-<VERSION_NUMBER>-osx-x86_64.zip
   dist/<TARGET>-<VERSION_NUMBER>-linux-x86_32.zip
   dist/<TARGET>-<VERSION_NUMBER>-linux-x86_64.zip
-  dist/<TARGET>-<VERSION_NUMBER>-linux-aarch64.zip
+  dist/<TARGET>-<VERSION_NUMBER>-linux-aarch_64.zip
 EOF
   exit 1
 fi
@@ -34,7 +34,7 @@ declare -a FILE_NAMES=( \
   osx-x86_64.zip osx-x86_64.exe \
   linux-x86_32.zip linux-x86_32.exe \
   linux-x86_64.zip linux-x86_64.exe \
-  linux-aarch64.zip linux-aarch64.exe \
+  linux-aarch_64.zip linux-aarch_64.exe \
 )
 
 # List of all well-known types to be included.