patch 8.2.3469: some files with json syntax are not recognized

Problem:    Some files with json syntax are not recognized.
Solution:   Add a few file patterns. (Emiliano Ruiz Carletti, closes #8947)
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index 3f4209a..42fe65a 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -259,7 +259,7 @@
     \ '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.json-patch', 'file.webmanifest', 'Pipfile.lock', 'file.ipynb'],
+    \ 'json': ['file.json', 'file.jsonp', 'file.json-patch', 'file.webmanifest', 'Pipfile.lock', 'file.ipynb', '.babelrc', '.eslintrc', '.prettierrc', '.firebaserc'],
     \ 'jsonc': ['file.jsonc'],
     \ 'jsp': ['file.jsp'],
     \ 'julia': ['file.jl'],
diff --git a/src/version.c b/src/version.c
index 00ede81..d15495e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3469,
+/**/
     3468,
 /**/
     3467,