fix(ci/build): opt macos ci and move bazel to 4.2.1

GitOrigin-RevId: d1494faf0c493675916216aea7ce6b1a9cf5467b

src/core/impl/comp_node/cuda/comp_node.cpp

@@ -279,7 +279,7 @@ public:
         return m_mem_alloc->get_free_left_and_right(begin_ptr, end_ptr);
     }
 
-    size_t get_max_block_size_available() {
+    size_t get_max_block_size_available() override {
         activate();
         return m_mem_alloc->get_max_block_size_available();
     }

src/core/impl/graph/seq_sublinear_memory.cpp

@@ -33,7 +33,7 @@ class RNGxorshf {
     uint64_t s[2];
 
 public:
-#if __cplusplus >= 201703L
+#if __cplusplus >= 201703L || (defined(__APPLE__) && __cplusplus >= 201402L)
     typedef uint64_t result_type;
     static constexpr uint64_t min() { return 0; }
     static constexpr uint64_t max() { return UINT64_MAX; }
@@ -766,7 +766,7 @@ void SeqModifierForSublinearMemory::ActionSearcherSingleCN::search_genetic() {
             }
         }
         m_cur_records = records;
-#if __cplusplus >= 201703L
+#if __cplusplus >= 201703L || (defined(__APPLE__) && __cplusplus >= 201402L)
         std::shuffle(perm.begin(), perm.end(), rng);
 #else
         std::random_shuffle(perm.begin(), perm.end(),
@@ -1119,4 +1119,4 @@ SeqModifierForSublinearMemory::SeqModifierForSublinearMemory(
 
 #endif  // !MGB_ENABLE_SUBLINEAR
 
-// vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}
\ No newline at end of file
+// vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}