vim-patch:9.1.1718: filetype: kubectl config file is not recognized #35583

Problem:  filetype: kubectl config file is not recognized
Solution: Detect .kube/kubectl as yaml filetype
          (Volodymyr Chernetskyi).

References:
- https://kubernetes.io/docs/reference/kubectl/kuberc/

closes: vim/vim#18169

6cd6857cbe

runtime/lua/vim/filetype.lua

@@ -2245,6 +2245,7 @@ local pattern = {
     ['/%.pinforc$'] = 'pinfo',
     ['/%.cargo/credentials$'] = 'toml',
     ['/%.init/.*%.override$'] = 'upstart',
+    ['/%.kube/kuberc$'] = 'yaml',
   },
   ['calendar/'] = {
     ['/%.calendar/'] = starsetf('calendar'),

test/old/testdir/test_filetype.vim

@@ -928,7 +928,7 @@ func s:GetFilenameChecks() abort
     \ 'xslt': ['file.xsl', 'file.xslt'],
     \ 'yacc': ['file.yy', 'file.yxx', 'file.y++'],
     \ 'yaml': ['file.yaml', 'file.yml', 'file.eyaml', 'file.kyaml', 'file.kyml', 'any/.bundle/config', '.clangd', '.clang-format', '.clang-tidy', 'file.mplstyle', 'matplotlibrc', 'yarn.lock',
-    \          '/home/user/.kube/config', '.condarc', 'condarc', 'pixi.lock'],
+    \          '/home/user/.kube/config', '/home/user/.kube/kuberc', '.condarc', 'condarc', 'pixi.lock'],
     \ 'yang': ['file.yang'],
     \ 'yuck': ['file.yuck'],
     \ 'z8a': ['file.z8a'],