CDRIVER-2887 add missing headers to dist

Author: kevinAlbs

NEWS

@@ -7,6 +7,8 @@ Bug fixes:
   * mongoc_collection_update_many and mongoc_collection_delete_many would fail
     with the URI option retryWrites=true.
   * Remove timestamp from uninstall scripts to permit reproducible build.
+  * Add missing header files to the release tarball to fix compilation when
+    configuring with ENABLE_SASL=GSSAPI.
 
 mongo-c-driver 1.13.0
 =====================

src/libbson/src/bson/bson-thread-private.h

@@ -79,6 +79,7 @@ set (src_libmongoc_src_mongoc_DIST_noinst_hs
    mongoc-client-pool-private.h
    mongoc-client-private.h
    mongoc-cluster-cyrus-private.h
+   mongoc-cluster-gssapi-private.h
    mongoc-cluster-private.h
    mongoc-cluster-sasl-private.h
    mongoc-cluster-sspi-private.h
@@ -101,6 +102,7 @@ set (src_libmongoc_src_mongoc_DIST_noinst_hs
    mongoc-gridfs-file-page-private.h
    mongoc-gridfs-file-private.h
    mongoc-gridfs-private.h
+   mongoc-gssapi-private.h
    mongoc-handshake-compiler-private.h
    mongoc-handshake-os-private.h
    mongoc-handshake-private.h