Fix config validation message typo (#13515)

* Fix config validation message typo

* Fix `checkNoUnwrappedItemOptionPairs` type param

packages/babel-core/src/config/validation/options.ts

@@ -455,7 +455,7 @@ export function checkNoUnwrappedItemOptionPairs(
   ) {
     e.message +=
       `\n- Maybe you meant to use\n` +
-      `"${type}": [\n  ["${lastItem.file.request}", ${JSON.stringify(
+      `"${type}s": [\n  ["${lastItem.file.request}", ${JSON.stringify(
         thisItem.value,
         undefined,
         2,

packages/babel-core/test/__snapshots__/option-manager.js.snap

@@ -3,7 +3,7 @@
 exports[`option-manager config plugin/preset flattening and overriding should throw when an option is following a preset 1`] = `
 "[BABEL] unknown: Unknown option: .useSpread. Check out https://babeljs.io/docs/en/babel-core/#options for more information about options.
 - Maybe you meant to use
-\\"preset\\": [
+\\"presets\\": [
   [\\"./fixtures/option-manager/babel-preset-bar\\", {
   \\"useSpread\\": true
 }]
@@ -14,7 +14,7 @@ To be a valid preset, its name and options should be wrapped in a pair of bracke
 exports[`option-manager config plugin/preset flattening and overriding should throw when an option is provided as a plugin 1`] = `
 "[BABEL] unknown: .useSpread is not a valid Plugin property
 - Maybe you meant to use
-\\"plugin\\": [
+\\"plugins\\": [
   [\\"./fixtures/option-manager/babel-plugin-foo\\", {
   \\"useSpread\\": true
 }]
@@ -25,7 +25,7 @@ To be a valid plugin, its name and options should be wrapped in a pair of bracke
 exports[`option-manager config plugin/preset flattening and overriding should throw when an option is provided as a preset 1`] = `
 "[BABEL] unknown: Unknown option: .useBuiltIns. Check out https://babeljs.io/docs/en/babel-core/#options for more information about options.
 - Maybe you meant to use
-\\"preset\\": [
+\\"presets\\": [
   [\\"./fixtures/option-manager/babel-preset-bar\\", {
   \\"useBuiltIns\\": \\"entry\\"
 }]