patch 9.1.1901: tests: test_vim9_generics fails without job feature

Problem:  tests: test_vim9_generics fails when built without the job or
          channel feature (lazypingu)
Solution: Skip test if job/channel feature is not available

fixes: #18702

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/testdir/test_vim9_generics.vim

@@ -417,8 +417,12 @@ def Test_generic_func_typename()
     Fn<list<list<blob>>>([[0z10, 0z20], [0z30]], 'list<list<blob>>')
     Fn<tuple<number, string>>((1, 'abc'), 'tuple<number, string>')
     Fn<dict<string>>({a: 'a', b: 'b'}, 'dict<string>')
+    if has('job')
       Fn<job>(test_null_job(), 'job')
+    endif
+    if has('channel')
       Fn<channel>(test_null_channel(), 'channel')
+    endif
     Fn<func>(function('Foo'), 'func(list<string>, dict<number>): list<blob>')
   END
   v9.CheckSourceSuccess(lines)

src/version.c

@@ -729,6 +729,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1901,
 /**/
     1900,
 /**/