feat: switch YAML extension preference from .yml to .yaml

Author: JoshuaKGoldberg

.github/FUNDING.yml renamed to .github/FUNDING.yaml

@@ -105,7 +105,7 @@ export default defineConfig(
 		extends: [yml.configs["flat/standard"], yml.configs["flat/prettier"]],
 		files: ["**/*.{yml,yaml}"],
 		rules: {
-			"yml/file-extension": ["error", { extension: "yml" }],
+			"yml/file-extension": "error",
 			"yml/sort-keys": [
 				"error",
 				{ order: { type: "asc" }, pathPattern: "^.*$" },

.github/workflows/ci.yml renamed to .github/workflows/ci.yaml

@@ -25,12 +25,7 @@ describe("blockESLintYML", () => {
 			              "**/*.{yml,yaml}",
 			            ],
 			            "rules": {
-			              "yml/file-extension": [
-			                "error",
-			                {
-			                  "extension": "yml",
-			                },
-			              ],
+			              "yml/file-extension": "error",
 			              "yml/sort-keys": [
 			                "error",
 			                {

.github/workflows/contributors.yml renamed to .github/workflows/contributors.yaml

@@ -17,7 +17,7 @@ export const blockESLintYML = base.createBlock({
 							],
 							files: ["**/*.{yml,yaml}"],
 							rules: {
-								"yml/file-extension": ["error", { extension: "yml" }],
+								"yml/file-extension": "error",
 								"yml/sort-keys": [
 									"error",
 									{