Follow redirects when downloading MinIO client in CI

dl.min.io now responds with an HTTP 302 redirect to GitHub Releases
for the mc binary. curl -O does not follow redirects, so the install
script was saving the empty redirect response (141 bytes) as the
mc binary and chmod +x-ing it. Subsequent steps that invoke mc fail
with `/usr/local/bin/mc: line 1: a: No such file or directory`.

Add -L so curl follows the redirect, and -f so it fails the script
loudly if the download returns a non-2xx status instead of silently
producing an invalid binary.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: 99Lys

.github/scripts/install_minio_client.sh

@@ -4,7 +4,7 @@ set -e
 echo "Installing MinIO Client (mc)..."
 
 {
-    curl -O https://dl.min.io/client/mc/release/linux-amd64/mc &&
+    curl -fLO https://dl.min.io/client/mc/release/linux-amd64/mc &&
     chmod +x mc &&
     mv mc /usr/local/bin/
 } && echo "MinIO Client installed successfully." || {