chore(ci): reduce bench loops for WASM compressed server key

- excessive loops seemed to trigger a crash likely due to some memory
exhaustion/fragmentation

tfhe/web_wasm_parallel_tests/worker.js

@@ -509,7 +509,7 @@ async function compactPublicKeyBench256BitSmall() {
 }
 
 async function compressedServerKeyBenchConfig(config) {
-  const bench_loops = 35;
+  const bench_loops = 5;
   let bench_results = {};
 
   console.log("Begin benchmarks"); // DEBUG