fix: follow redirects and add fallback for zlib download in pyinstaller build (#9104)

* test: trigger mirror sync verification

* fix: add -L flag and GitHub fallback for zlib download in pyinstaller build

The zlib.net URL now returns a redirect, causing curl to save a 185-byte
redirect page instead of the tarball. This breaks tar extraction and
causes the Linux pyinstaller build to fail.

Add -L flag to follow redirects (matching the OpenSSL curl call) and add
GitHub releases as a fallback mirror.

* fix: add -f flag so HTTP errors trigger the GitHub fallback

Author: roger-zhangg

installer/pyinstaller/build-linux.sh

@@ -58,7 +58,8 @@ ln -sf /opt/openssl/lib64 /opt/openssl/lib
 cd ../../
 
 echo "Building zlib"
-curl https://www.zlib.net/zlib-${zlib_version}.tar.gz --output zlib.tar.gz
+curl -fL "https://www.zlib.net/zlib-${zlib_version}.tar.gz" --output zlib.tar.gz || \
+    curl -fL "https://github.com/madler/zlib/releases/download/v${zlib_version}/zlib-${zlib_version}.tar.gz" --output zlib.tar.gz
 tar xvf zlib.tar.gz
 cd zlib-${zlib_version}
 ./configure && make -j8 && make -j8 install