patch 9.1.0303: filetype: some protocol buffer files not recognized

Problem:  filetype: some protocol buffer files not recognized
Solution: Detect '*.textproto', '*.textpb', '*.txtpb' as pbtxt files
          (Bruno Belanyi)

See: https://protobuf.dev/reference/protobuf/textformat-spec/#text-format-files

closes: #14463

Signed-off-by: Bruno BELANYI <bruno@belanyi.fr>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 5fb7b1f..65b5bd5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    303,
+/**/
     302,
 /**/
     301,