patch 8.2.0980: raku file extension not recognized

Problem:    Raku file extension not recognized. (Steven Penny)
Solution:   Recognize .raku and .rakumod. (closes #6255)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index dca2512..331260d 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -330,7 +330,7 @@
     \ 'pccts': ['file.g'],
     \ 'pdf': ['file.pdf'],
     \ 'perl': ['file.plx', 'file.al', 'file.psgi', 'gitolite.rc', '.gitolite.rc', 'example.gitolite.rc'],
-    \ 'perl6': ['file.p6', 'file.pm6', 'file.pl6'],
+    \ 'perl6': ['file.p6', 'file.pm6', 'file.pl6', 'file.raku', 'file.rakumod'],
     \ 'pf': ['pf.conf'],
     \ 'pfmain': ['main.cf'],
     \ 'php': ['file.php', 'file.php9', 'file.phtml', 'file.ctp'],
diff --git a/src/version.c b/src/version.c
index 3ac374f..eabdafc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    980,
+/**/
     979,
 /**/
     978,