Fuzztest: add missing file
diff --git a/tests/fuzztest/alltypes_callback.options b/tests/fuzztest/alltypes_callback.options
new file mode 100644
index 0000000..fb07847
--- /dev/null
+++ b/tests/fuzztest/alltypes_callback.options
@@ -0,0 +1,4 @@
+*.rep_* type:FT_CALLBACK
+*.oneof_* submsg_callback:true
+*.Limits.int64_min type:FT_CALLBACK
+*.DescriptorSize8 descriptorsize:DS_8