Migrate 'Plugins API' e2e tests to Playwright (WordPress#55958)

* Migrate 'Plugins API' e2e tests to Playwright
* Remove old test file and snapshot

test/e2e/specs/editor/plugins/plugins-api-error-boundary.spec.js

@@ -0,0 +1,38 @@
+/**
+ * WordPress dependencies
+ */
+const { test, expect } = require( '@wordpress/e2e-test-utils-playwright' );
+
+test.describe( 'Plugins API Error Boundary', () => {
+	test.beforeAll( async ( { requestUtils } ) => {
+		await requestUtils.activatePlugin(
+			'gutenberg-test-plugin-plugins-error-boundary'
+		);
+	} );
+
+	test.afterAll( async ( { requestUtils } ) => {
+		await requestUtils.deactivatePlugin(
+			'gutenberg-test-plugin-plugins-error-boundary'
+		);
+	} );
+
+	test( 'Should create notice using plugin error boundary callback', async ( {
+		admin,
+		page,
+	} ) => {
+		let hasError = false;
+		page.on( 'console', ( msg ) => {
+			if ( msg.type() === 'error' && msg.text().includes( 'Whoops!' ) )
+				hasError = true;
+		} );
+
+		await admin.createNewPost();
+
+		expect( hasError ).toBe( true );
+		await expect(
+			page.locator( '.is-error .components-notice__content' )
+		).toContainText(
+			'The "my-error-plugin" plugin has encountered an error and cannot be rendered.'
+		);
+	} );
+} );