fix(@angular/build): support valid self-closing SVG tags in HTML index file

Prior to this change, the Angular build process incorrectly flagged self-closing SVG tags (e.g., `<path />`) as invalid HTML. This commit rectifies this issue by explicitly allowing self-closing syntax for SVG elements embedded within the HTML index file.

Closes: #27702
(cherry picked from commit 5f9053a)

Author: alan-agius4

packages/angular/build/src/utils/index-file/augment-index-html.ts

@@ -65,6 +65,29 @@ const VALID_SELF_CLOSING_TAGS = new Set([
   'source',
   'track',
   'wbr',
+  /** SVG tags */
+  'circle',
+  'ellipse',
+  'line',
+  'path',
+  'polygon',
+  'polyline',
+  'rect',
+  'text',
+  'tspan',
+  'linearGradient',
+  'radialGradient',
+  'stop',
+  'image',
+  'pattern',
+  'defs',
+  'g',
+  'marker',
+  'mask',
+  'style',
+  'symbol',
+  'use',
+  'view',
 ]);
 
 /*