feat: support yaml language server schema validate

lua/lsp/protocol.lua

@@ -8,4 +8,18 @@ require("lspconfig").jsonls.setup({
 
 require("lspconfig").taplo.setup({})
 
-require("lspconfig").yamlls.setup({})
+require("lspconfig").yamlls.setup({
+    capabilities = capabilities,
+    settings = {
+        yaml = {
+            schemas = {
+                ["https://json.schemastore.org/golangci-lint.json"] = ".golangci.yaml",
+                ["https://json.schemastore.org/yamllint.json"] = ".protolint.yaml",
+                ["https://raw.githubusercontent.com/instrumenta/kubernetes-json-schema/master/v1.18.0-standalone-strict/all.json"] = "/*.k8s.yaml",
+            },
+            schemaStore = { enable = true },
+            format = { enable = true },
+            completion = true,
+        },
+    },
+})