Merge remote-tracking branch 'origin/no_intermed_buffers_api_vv' into integration

esphome/components/api/proto.h

@@ -408,7 +408,11 @@ class DumpBuffer {
   size_t pos() const { return pos_; }
   /// Update position after buf_append_printf call
   void set_pos(size_t pos) {
-    pos_ = pos;
+    if (pos >= CAPACITY) {
+      pos_ = CAPACITY - 1;
+    } else {
+      pos_ = pos;
+    }
     buf_[pos_] = '\0';
   }