patch 8.0.1262: terminal redir test is flaky

Problem:    Terminal redir test is flaky.
Solution:   Add it to the list of flaky tests.
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index a359448..08c0e68 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -252,6 +252,7 @@
       \ 'Test_reltime()',
       \ 'Test_terminal_composing_unicode()',
       \ 'Test_terminal_noblock()',
+      \ 'Test_terminal_redir_file()',
       \ 'Test_with_partial_callback()',
       \ ]
 
diff --git a/src/version.c b/src/version.c
index 7d049d0..b7cb58b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1262,
+/**/
     1261,
 /**/
     1260,