Autoconf output and header mismatch

After we merged https://github.com/citusdata/citus/pull/5541/ we started to see issues when we run `autoconf`

Here is the diff that should be empty after a `autoconf` command:

```diff
diff --git a/src/include/citus_config.h.in b/src/include/citus_config.h.in
index b9b639ef6..2951229f3 100644
--- a/src/include/citus_config.h.in
+++ b/src/include/citus_config.h.in
@@ -31,6 +31,9 @@
/* A string containing the version number, platform, and C compiler */
#undef CITUS_VERSION_STR

+/* Define to 1 to build with lz4 support. (--with-lz4) */
+#undef HAVE_CITUS_LIBLZ4
+
/* Define to 1 if you have the header file. */
#undef HAVE_INTTYPES_H

@@ -38,7 +41,7 @@
#undef HAVE_LIBCURL

/* Define to 1 if you have the `lz4' library (-llz4). */
-#undef HAVE_CITUS_LIBLZ4
+#undef HAVE_LIBLZ4

/* Define to 1 if you have the `zstd' library (-lzstd). */
#undef HAVE_LIBZSTD
```