chore(volar): update volar executable name (#4308)

see: vuejs/language-tools#876
see: johnsoncodehk/volar/blob/master/packages/vue-language-server/package.json#L11

ale_linters/vue/volar.vim

@@ -2,7 +2,7 @@
 " Description: Volar Language Server integration for ALE adopted from
 "              nvim-lspconfig and volar/packages/shared/src/types.ts
 
-call ale#Set('vue_volar_executable', 'volar-server')
+call ale#Set('vue_volar_executable', 'vue-language-server')
 call ale#Set('vue_volar_use_global', get(g:, 'ale_use_global_executables', 0))
 call ale#Set('vue_volar_init_options', {
 \   'documentFeatures': {
@@ -73,7 +73,7 @@ call ale#linter#Define('vue', {
 \   'name': 'volar',
 \   'language': 'vue',
 \   'lsp': 'stdio',
-\   'executable': {b -> ale#path#FindExecutable(b, 'vue_volar', ['node_modules/.bin/volar-server'])},
+\   'executable': {b -> ale#path#FindExecutable(b, 'vue_volar', ['node_modules/.bin/vue-language-server'])},
 \   'command': '%e --stdio',
 \   'project_root': function('ale_linters#vue#volar#GetProjectRoot'),
 \   'initialization_options': function('ale_linters#vue#volar#GetInitializationOptions'),

doc/ale-vue.txt

@@ -42,7 +42,7 @@ volar                                                           *ale-vue-volar*
 g:ale_vue_volar_executable                         *g:ale_vue_volar_executable*
                                                    *b:ale_vue_volar_executable*
   Type: |String|
-  Default: `'volar-server'`
+  Default: `'vue-language-server'`
 
   See |ale-integrations-local-executables|