fix(deps): update fontsource monorepo to v5

Author: renovate[bot]

package.json

@@ -16,8 +16,8 @@
     "@astrojs/rss": "2.4.3",
     "@astrojs/sitemap": "1.3.3",
     "@astrojs/tailwind": "3.1.3",
-    "@fontsource/jetbrains-mono": "4.5.12",
-    "@fontsource/lexend": "4.5.15",
+    "@fontsource/jetbrains-mono": "5.0.4",
+    "@fontsource/lexend": "5.0.4",
     "@tailwindcss/typography": "0.5.9",
     "astro": "2.7.3",
     "mdast-util-to-string": "3.2.0",