Fix escaped character in links (#19849)

Co-authored-by: fisker <lionkay@gmail.com>

changelog_unreleased/markdown/19849.md

@@ -0,0 +1,16 @@
+#### Fix escaped character in links (#19849 by @Kjubikstronk)
+
+<!-- prettier-ignore -->
+```markdown
+<!-- Input -->
+[test](/hello?foo&quot\;bar)
+
+<!-- Prettier stable (First format)  -->
+[test](/hello?foo&quot;bar)
+
+<!-- Prettier stable (Second format) -->
+[test](/hello?foo"bar)
+
+<!-- Prettier main -->
+[test](/hello?foo\&quot;bar)
+```