@astrolib/seo -- Meta and Link tags should not use void style

[ShoGinn]

In:

astrolib/packages/seo/src/utils/buildTags.ts

Lines 4 to 16 in b7a454f

	const createMetaTag = (attributes: Record<string, string>): string => {
	const attrs = Object.entries(attributes)
	.map(([key, value]) => `${key}="${escape(value)}"`)
	.join(" ");
	return `<meta ${attrs} />`;
	};
	const createLinkTag = (attributes: Record<string, string>): string => {
	const attrs = Object.entries(attributes)
	.map(([key, value]) => `${key}="${escape(value)}"`)
	.join(" ");
	return `<link ${attrs} />`;
	};

Both the <link> and <meta> are using a void style closing method, which is not in the HTML standards:
https://html.spec.whatwg.org/multipage/syntax.html#void-elements

When linting code with html-validate it finds it using this:
https://html-validate.org/rules/void-style.html

I recommend just removing the void-style

const createMetaTag = (attributes: Record<string, string>): string => {
  const attrs = Object.entries(attributes)
    .map(([key, value]) => `${key}="${escape(value)}"`)
    .join(" ");
  return `<meta ${attrs}>`;
};

const createLinkTag = (attributes: Record<string, string>): string => {
  const attrs = Object.entries(attributes)
    .map(([key, value]) => `${key}="${escape(value)}"`)
    .join(" ");
  return `<link ${attrs}>`;
};

Details

When linting just the 404.html from astrowind:

  1:1926  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:1970  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2036  error  Expected omitted end tag <link> instead of self-closing element <link/>  void-style
  1:2083  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2182  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2253  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2297  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2403  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2444  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style
  1:2507  error  Expected omitted end tag <meta> instead of self-closing element <meta/>  void-style