fix: increase fiber stack (#5817)

Author: BorysTheDev

src/server/dfly_main.cc

@@ -102,7 +102,7 @@ namespace {
 // need additional 8-16 bytes for their internal structures, thus over reserving additional
 // memory pages if using round sizes.
 #ifdef NDEBUG
-constexpr size_t kFiberDefaultStackSize = 32_KB - 16;
+constexpr size_t kFiberDefaultStackSize = 36_KB - 16;
 #else
 // Increase stack size for debug builds.
 constexpr size_t kFiberDefaultStackSize = 40_KB - 16;