patch 8.2.2990: Jupyter Notebook files are not recognized

Problem:    Jupyter Notebook files are not recognized.
Solution:   Recognize *.ipynb. (closes #8375)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index ac227fe..0b670ac 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -257,7 +257,7 @@
     \ 'jgraph': ['file.jgr'],
     \ 'jovial': ['file.jov', 'file.j73', 'file.jovial'],
     \ 'jproperties': ['file.properties', 'file.properties_xx', 'file.properties_xx_xx', 'some.properties_xx_xx_file'],
-    \ 'json': ['file.json', 'file.jsonp', 'file.webmanifest', 'Pipfile.lock'],
+    \ 'json': ['file.json', 'file.jsonp', 'file.webmanifest', 'Pipfile.lock', 'file.ipynb'],
     \ 'jsp': ['file.jsp'],
     \ 'kconfig': ['Kconfig', 'Kconfig.debug', 'Kconfig.file'],
     \ 'kivy': ['file.kv'],
diff --git a/src/version.c b/src/version.c
index ce78fc5..dfe1f8b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2990,
+/**/
     2989,
 /**/
     2988,