[docs] - Fix admonition hyperlink colouring (#9385)

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## Summary

<!-- What's the purpose of the change? What does it do, and why? -->
Fix the colouration of hyperlinks within admonitions on dark theme to be
more readable. Closes #9046

## Test Plan

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Documentation was regenerated via mkdocs and the supplied requirements.

Signed-off-by: 64815328+Eutropios@users.noreply.github.com

docs/stylesheets/extra.css

@@ -97,3 +97,8 @@
 [data-md-color-scheme="astral-dark"] details summary a {
   color: var(--flare);
 }
+
+/* See: https://github.com/astral-sh/ruff/issues/9046 */
+[data-md-color-scheme="astral-dark"] div.admonition p a {
+  color: var(--flare);
+}