patch 9.1.1420: tests: could need some more tests for shebang lines

Problem:  tests: could need some more tests for shebang lines
Solution: add more shebang patterns to test_filetype.vim
          (Eisuke Kawashima)

closes: #17409

Signed-off-by: Eisuke Kawashima <e-kwsm@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_filetype.vim

@@ -1075,9 +1075,14 @@ def s:GetScriptEnvChecks(): dict<list<list<string>>>
     perl: [['#!/usr/bin/env VAR=val perl']],
     scala: [['#!/usr/bin/env VAR=val VVAR=vval scala']],
     awk: [['#!/usr/bin/env --split-string=VAR= awk -vFS="," -f']],
+    ruby: [['#!/usr/bin/env --split-string=ruby --debug']],
+    sed: [['#!/usr/bin/env -iS sed -f']],
+    zsh: [['#!/usr/bin/env -iS VAR=val zsh -l']],
     execline: [['#!/usr/bin/env execlineb']],
     scheme: [['#!/usr/bin/env VAR=val --ignore-environment scheme']],
+    sh: [['#!/usr/bin/env -S --ignore-environment VAR= sh -u']],
     python: [['#!/usr/bin/env -S -i VAR=val python -B -u']],
+    csh: [['#!/usr/bin/env -S VAR= csh -f']],
     wml: [['#!/usr/bin/env VAR=val --split-string wml']],
     nix: [['#!/usr/bin/env nix-shell']],
   }

src/version.c

@@ -709,6 +709,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1420,
 /**/
     1419,
 /**/