chore: fix size update github action date format

PiperOrigin-RevId: 601557983

Author: asyncliz

scripts/size/update-size.ts

@@ -6,9 +6,9 @@
 
 import * as fs from 'fs/promises';
 
-import { MarkdownTable } from '../analyzer/markdown-tree-builder.js';
-import { COMPONENT_CUSTOM_ELEMENTS } from '../component-custom-elements.js';
-import { Bundle, Size, getBundleSize } from './bundle-size.js';
+import {MarkdownTable} from '../analyzer/markdown-tree-builder.js';
+import {COMPONENT_CUSTOM_ELEMENTS} from '../component-custom-elements.js';
+import {Bundle, Size, getBundleSize} from './bundle-size.js';
 
 // The bundles to track sizes for.
 
@@ -28,7 +28,7 @@ const bundles: Bundle[] = [
   ).map((component) => {
     const tsCustomElementPaths = COMPONENT_CUSTOM_ELEMENTS[component];
     const jsCustomElementPaths = tsCustomElementPaths.map((tsPath) =>
-      tsPath.replace(/\.ts$/, '.js')
+      tsPath.replace(/\.ts$/, '.js'),
     );
 
     return {
@@ -41,14 +41,14 @@ const bundles: Bundle[] = [
 // Compute bundle sizes.
 
 const bundleSizes = await Promise.all(
-  bundles.map((bundle) => getBundleSize(bundle))
+  bundles.map((bundle) => getBundleSize(bundle)),
 );
 
 // Create a markdown table with size data.
 
 const columns = ['Component', 'gzip', 'minified', '*% CSS*', 'Import'];
 const rows: string[][] = [];
-for (const { name, size, inputs } of bundleSizes) {
+for (const {name, size, inputs} of bundleSizes) {
   rows.push([
     `**${camelToSentenceCase(name)}**`,
     `**${bytesToString(size.gzip)}**`,
@@ -67,7 +67,7 @@ for (const { name, size, inputs } of bundleSizes) {
           getCssPercent(input.size),
           getImport(input.input),
         ];
-      })
+      }),
     );
   }
 }
@@ -79,12 +79,12 @@ for (const row of rows) {
 
 // Update markdown file.
 
-const markdownContent = await fs.readFile('docs/size.md', { encoding: 'utf8' });
+const markdownContent = await fs.readFile('docs/size.md', {encoding: 'utf8'});
 const updateTrackingStart = '<!-- MWC_UPDATE_TRACKING_START -->';
 const updateTrackingEnd = '<!-- MWC_UPDATE_TRACKING_END -->';
 
 const now = new Date();
-const nowString = `${now.getFullYear()}-${now.getMonth() + 1}-${now.getDate()}`;
+const nowString = now.toISOString().split('T')[0];
 
 const newMarkdownContent = [
   markdownContent.substring(0, markdownContent.indexOf(updateTrackingStart)),