fix: ChunkBuilder asserts empty size only for debug build (risingwave…

…labs#6621)

fix: ChunkBuilder checks non-empty only for debug build

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

src/stream/src/common/builder.rs

@@ -45,7 +45,8 @@ pub struct StreamChunkBuilder {
 
 impl Drop for StreamChunkBuilder {
     fn drop(&mut self) {
-        assert_eq!(self.size, 0, "dropping non-empty stream chunk builder");
+        // Possible to fail in some corner cases but should not in unit tests
+        debug_assert_eq!(self.size, 0, "dropping non-empty stream chunk builder");
     }
 }