[Actions] Add github actions language server

nvim/lua/plugins/lsp/ls/gh-actions.lua

@@ -0,0 +1,20 @@
+-- ┌                                               ┐
+-- │                GitHub Actions                 │
+-- └                                               ┘
+local lsp = vim.lsp
+
+local capabilities = require("lsp-options").capabilities
+local on_attach = require("lsp-options").on_attach
+
+lsp.config("gh_actions_ls", {
+    capabilities = capabilities,
+    on_attach = on_attach,
+	filetypes = {
+		"yaml.actions",
+	},
+})
+
+
+-- ── Enable configs ───────────────────────────────────────────────
+local enable = vim.lsp.enable
+enable("gh_actions_ls")