fix: increase retry attempts for file downloads

Enhanced the robustness of the `download_keys.sh` script by increasing the maximum number of retry attempts from 5 to 100 when downloading files.

light-prover/scripts/download_keys.sh

@@ -64,7 +64,7 @@ download_file() {
   echo "Downloading $FILE"
   [ "$REMOTE_SIZE" -ne 0 ] && echo "Expected size: $REMOTE_SIZE bytes"
 
-  local MAX_RETRIES=5
+  local MAX_RETRIES=100
   local attempt=0
   while (( attempt < MAX_RETRIES )); do
     if curl -S -f --retry 3 --retry-delay 2 --connect-timeout 30 \
@@ -92,7 +92,7 @@ download_file() {
     fi
 
     echo "Download failed for $FILE (attempt $((attempt + 1))). Retrying..."
-    sleep $((2 ** attempt))  # Exponential backoff
+    sleep $((2 ** attempt))
     ((attempt++))
   done