third_party: switch nanoarrow to the forked version

New commits:
- fix: Fix potential integer overflows
- fix: Fix issues found by a static analyzer

Closes tarantool/security#138

NO_DOC=third_party
NO_TEST=third_party
NO_CHANGELOG=third_party

Author: Gumix

.gitmodules

@@ -66,4 +66,4 @@
 	url = https://github.com/tarantool/metrics.git
 [submodule "third_party/arrow/nanoarrow"]
 	path = third_party/arrow/nanoarrow
-	url = https://github.com/apache/arrow-nanoarrow.git
+	url = https://github.com/tarantool/arrow-nanoarrow.git