feat: Adding nvim-lint plugin and adding the cfn-lint for CloudFormation

linting.

nvim/lua/plugins/nvim-lint.lua

@@ -2,7 +2,13 @@ return {
     'mfussenegger/nvim-lint',
     config = function()
         require('lint').linters_by_ft = {
-            -- yaml = {'cfn-lint'}
+            yaml = { 'cfn_lint' }
         }
+
+        vim.api.nvim_create_autocmd({ 'BufWritePost', 'BufReadPost' }, {
+            callback = function()
+                require('lint').try_lint()
+            end,
+        })
     end,
 }